Remove unnecessary request from log tests (elastic#126556)

(cherry picked from commit c11b8f1)

# Conflicts:
#	muted-tests.yml

Author: benchaplin

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

@@ -197,7 +197,6 @@ public void testDataNodeDoesNotLogStackTraceWhenErrorTraceTrue() throws IOExcept
                 responseEntity = performRequestAndGetResponseEntityAfterDelay(request, TimeValue.timeValueSeconds(1L));
             }
 
-            getRestClient().performRequest(searchRequest);
             mockLog.assertAllExpectationsMatched();
         }
     }
@@ -241,7 +240,6 @@ public void testDataNodeLogsStackTraceWhenErrorTraceFalseOrEmpty() throws IOExce
                 responseEntity = performRequestAndGetResponseEntityAfterDelay(request, TimeValue.timeValueSeconds(1L));
             }
 
-            getRestClient().performRequest(searchRequest);
             mockLog.assertAllExpectationsMatched();
         }
     }