[BEAM-12919] Removed IBM Streams from runner matrix (#15542)

diff --git a/website/www/site/data/capability_matrix.yaml b/website/www/site/data/capability_matrix.yaml
index c622083..2f18d47 100644
--- a/website/www/site/data/capability_matrix.yaml
+++ b/website/www/site/data/capability_matrix.yaml
@@ -20,8 +20,6 @@
       name: Apache Spark (RDD/DStream based)
     - class: spark-dataset
       name: Apache Spark Structured Streaming (Dataset based)
-    - class: ibmstreams
-      name: IBM Streams
     - class: samza
       name: Apache Samza
     - class: nemo
@@ -64,10 +62,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: ParDo applies per-element transformations as Spark FlatMapFunction.
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -111,10 +105,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: "Using Spark's <tt>groupByKey</tt>."
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -158,10 +148,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: Some corner cases like flatten on empty collections are not yet supported.
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -205,10 +191,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: "Using Spark's <tt>Aggregator</tt> and agg function"
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -252,10 +234,6 @@
               l1: "Partially"
               l2: supported via inlining only in batch mode
               l3: ""
-            - class: ibmstreams
-              l1: "Partially"
-              l2: supported via inlining
-              l3: ""
             - class: samza
               l1: "Partially"
               l2: supported via inlining
@@ -299,10 +277,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: "Using Spark's broadcast variables."
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -346,10 +320,6 @@
               l1: "Partially"
               l2: bounded source only
               l3: "Using Spark's DatasourceV2 API in microbatch mode (Continuous streaming mode is tagged experimental in spark and does not support aggregation)."
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -393,10 +363,6 @@
               l1: "Partially"
               l2: All metric types are supported in batch mode.
               l3: Only attempted values are supported. No committed values for metrics.
-            - class: ibmstreams
-              l1: "Partially"
-              l2: All metrics types are supported.
-              l3: Only attempted values are supported. No committed values for metrics.
             - class: samza
               l1: "Partially"
               l2: Counter and Gauge are supported.
@@ -440,10 +406,6 @@
               l1: "No"
               l2: not implemented
               l3:
-            - class: ibmstreams
-              l1: "Partially"
-              l2: non-merging windows
-              l3: ""
             - class: samza
               l1: "Partially"
               l2: non-merging windows
@@ -496,10 +458,6 @@
               l1:
               l2:
               l3: ""
-            - class: ibmstreams
-              l1:
-              l2:
-              l3: ""
             - class: samza
               l1:
               l2:
@@ -543,10 +501,6 @@
               l1:
               l2:
               l3: ""
-            - class: ibmstreams
-              l1:
-              l2:
-              l3: ""
             - class: samza
               l1:
               l2:
@@ -590,10 +544,6 @@
               l1:
               l2:
               l3: ""
-            - class: ibmstreams
-              l1:
-              l2:
-              l3: ""
             - class: samza
               l1:
               l2:
@@ -637,10 +587,6 @@
               l1:
               l2:
               l3: ""
-            - class: ibmstreams
-              l1:
-              l2:
-              l3: ""
             - class: samza
               l1:
               l2:
@@ -684,10 +630,6 @@
               l1:
               l2:
               l3: ""
-            - class: ibmstreams
-              l1:
-              l2:
-              l3: ""
             - class: samza
               l1:
               l2:
@@ -740,10 +682,6 @@
               l1:
               l2:
               l3: ""
-            - class: ibmstreams
-              l1:
-              l2:
-              l3: ""
             - class: samza
               l1:
               l2:
@@ -787,10 +725,6 @@
               l1:
               l2:
               l3: ""
-            - class: ibmstreams
-              l1:
-              l2:
-              l3: ""
             - class: samza
               l1:
               l2:
@@ -834,10 +768,6 @@
               l1:
               l2:
               l3: ""
-            - class: ibmstreams
-              l1:
-              l2:
-              l3: ""
             - class: samza
               l1:
               l2:
@@ -881,10 +811,6 @@
               l1:
               l2:
               l3: ""
-            - class: ibmstreams
-              l1:
-              l2:
-              l3: ""
             - class: samza
               l1:
               l2:
@@ -928,10 +854,6 @@
               l1:
               l2:
               l3: ""
-            - class: ibmstreams
-              l1:
-              l2:
-              l3: ""
             - class: samza
               l1:
               l2:
@@ -984,10 +906,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: supported
@@ -1023,10 +941,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: supported
@@ -1062,10 +976,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: supported
@@ -1101,10 +1011,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: supported
@@ -1140,10 +1046,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: supported
@@ -1179,10 +1081,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: supported
@@ -1218,10 +1116,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: supported
@@ -1267,10 +1161,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -1307,10 +1197,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -1347,10 +1233,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3:
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -1387,10 +1269,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -1427,10 +1305,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -1467,10 +1341,6 @@
               l1: "No"
               l2: no streaming support in the runner
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -1507,10 +1377,6 @@
               l1: "No"
               l2: not implemented
               l3: ""
-            - class: ibmstreams
-              l1: "Partially"
-              l2: non-merging windows
-              l3: ""
             - class: samza
               l1: "Partially"
               l2: non-merging windows
@@ -1556,10 +1422,6 @@
               l1: "Partially"
               l2: fully supported in batch mode
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -1596,10 +1458,6 @@
               l1: "No"
               l2: ""
               l3: ""
-            - class: ibmstreams
-              l1: "Yes"
-              l2: fully supported
-              l3: ""
             - class: samza
               l1: "Yes"
               l2: fully supported
@@ -1645,10 +1503,6 @@
               l1:
               l2:
               l3:
-            - class: ibmstreams
-              l1:
-              l2:
-              l3:
             - class: samza
               l1:
               l2:
@@ -1684,10 +1538,6 @@
               l1: "No"
               l2:
               l3: not implemented
-            - class: ibmstreams
-              l1:
-              l2:
-              l3:
             - class: samza
               l1: "Partially"
               l2: