Fix extraneous not in comments (#137016)

Added in #136953

Author: DaveCTurner

server/src/main/java/org/elasticsearch/action/support/master/AcknowledgedRequest.java

@@ -51,7 +51,7 @@ public abstract class AcknowledgedRequest<Request extends MasterNodeRequest<Requ
      *                   and serializing it as a transport message). If the cluster state is committed (i.e. a quorum of master-eligible
      *                   nodes have accepted the new state) and then the timeout elapses then the corresponding listener is completed via
      *                   {@link org.elasticsearch.cluster.ClusterStateAckListener#onAckTimeout()}. Although the time interval is measured
-     *                   from the start of the publication, it does not have any effect until the cluster state is not committed:
+     *                   from the start of the publication, it does not have any effect until the cluster state is committed:
      *                   <ul>
      *                       <li>
      *                          If the cluster state update fails before committing then the failure is always reported via

server/src/main/java/org/elasticsearch/cluster/ClusterStateAckListener.java

@@ -55,7 +55,7 @@ public interface ClusterStateAckListener {
      *         message). If the cluster state is committed (i.e. a quorum of master-eligible nodes have accepted the new state) and then the
      *         timeout elapses then the corresponding listener is completed via {@link
      *         org.elasticsearch.cluster.ClusterStateAckListener#onAckTimeout()}. Although the time interval is measured from the start of
-     *         the publication, it does not have any effect until the cluster state is not committed:
+     *         the publication, it does not have any effect until the cluster state is committed:
      *         <ul>
      *             <li>
      *                If the cluster state update fails before committing then the failure is always reported via {@link