Remove unnecessary request from log tests

Author: benchaplin

x-pack/plugin/async-search/src/internalClusterTest/java/org/elasticsearch/xpack/search/AsyncSearchErrorTraceIT.java

@@ -185,7 +185,6 @@ public void testDataNodeDoesNotLogStackTraceWhenErrorTraceTrue() throws IOExcept
                 responseEntity = performRequestAndGetResponseEntityAfterDelay(request, TimeValue.timeValueSeconds(1L));
             }
 
-            getRestClient().performRequest(searchRequest);
             mockLog.assertAllExpectationsMatched();
         }
     }
@@ -228,7 +227,6 @@ public void testDataNodeLogsStackTraceWhenErrorTraceFalseOrEmpty() throws IOExce
                 responseEntity = performRequestAndGetResponseEntityAfterDelay(request, TimeValue.timeValueSeconds(1L));
             }
 
-            getRestClient().performRequest(searchRequest);
             mockLog.assertAllExpectationsMatched();
         }
     }