STORM-3875 remove topology gc opts from ThroughputVsLatency to allow running on JDK11 (#3486)

Co-authored-by: Aaron Gresch <agresch@yahoo-inc.com>
diff --git a/examples/storm-loadgen/src/main/java/org/apache/storm/loadgen/ThroughputVsLatency.java b/examples/storm-loadgen/src/main/java/org/apache/storm/loadgen/ThroughputVsLatency.java
index 493c7e0..4a139cf 100644
--- a/examples/storm-loadgen/src/main/java/org/apache/storm/loadgen/ThroughputVsLatency.java
+++ b/examples/storm-loadgen/src/main/java/org/apache/storm/loadgen/ThroughputVsLatency.java
@@ -261,9 +261,6 @@
         }
         conf.put(Config.TOPOLOGY_WORKER_METRICS, workerMetrics);
         conf.put(Config.TOPOLOGY_BUILTIN_METRICS_BUCKET_SIZE_SECS, 10);
-        conf.put(Config.TOPOLOGY_WORKER_GC_CHILDOPTS,
-            "-XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+UseConcMarkSweepGC "
-                + "-XX:NewSize=128m -XX:CMSInitiatingOccupancyFraction=70 -XX:-CMSConcurrentMTEnabled");
         conf.put(Config.TOPOLOGY_WORKER_CHILDOPTS, "-Xmx2g");
 
         TopologyBuilder builder = new TopologyBuilder();