Disable CASSANDRA-7688 until DT is fixed
diff --git a/CHANGES.txt b/CHANGES.txt
index 5b23d87..d44d70d 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,5 +1,4 @@
 2.1.3
- * Write partition size estimates into a system table (CASSANDRA-7688)
  * Upgrade libthrift to 0.9.2 (CASSANDRA-8685)
  * Don't use the shared ref in sstableloader (CASSANDRA-8704)
  * Purge internal prepared statements if related tables or
diff --git a/src/java/org/apache/cassandra/service/CassandraDaemon.java b/src/java/org/apache/cassandra/service/CassandraDaemon.java
index 1198b3e..50c8295 100644
--- a/src/java/org/apache/cassandra/service/CassandraDaemon.java
+++ b/src/java/org/apache/cassandra/service/CassandraDaemon.java
@@ -366,7 +366,7 @@
             waitForGossipToSettle();
 
         // schedule periodic dumps of table size estimates into SystemKeyspace.SIZE_ESTIMATES_CF
-        ScheduledExecutors.optionalTasks.scheduleWithFixedDelay(SizeEstimatesRecorder.instance, 30, 5 * 60, TimeUnit.SECONDS);
+        // ScheduledExecutors.optionalTasks.scheduleWithFixedDelay(SizeEstimatesRecorder.instance, 30, 5 * 60, TimeUnit.SECONDS);
 
         // Thrift
         InetAddress rpcAddr = DatabaseDescriptor.getRpcAddress();