diff --git a/server/src/main/java/org/elasticsearch/action/search/AbstractSearchAsyncAction.java b/server/src/main/java/org/elasticsearch/action/search/AbstractSearchAsyncAction.java
index 9b772abc1214d..e8693352270c2 100644
--- a/server/src/main/java/org/elasticsearch/action/search/AbstractSearchAsyncAction.java
+++ b/server/src/main/java/org/elasticsearch/action/search/AbstractSearchAsyncAction.java
@@ -246,32 +246,6 @@ void skipShard(SearchShardIterator iterator) {
         successfulShardExecution();
     }
 
-    private static boolean assertExecuteOnStartThread() {
-        // Ensure that the current code has the following stacktrace:
-        // AbstractSearchAsyncAction#start -> AbstractSearchAsyncAction#executePhase -> AbstractSearchAsyncAction#performPhaseOnShard
-        final StackTraceElement[] stackTraceElements = Thread.currentThread().getStackTrace();
-        assert stackTraceElements.length >= 6 : stackTraceElements;
-        int index = 0;
-        assert stackTraceElements[index++].getMethodName().equals("getStackTrace");
-        assert stackTraceElements[index++].getMethodName().equals("assertExecuteOnStartThread");
-        assert stackTraceElements[index++].getMethodName().equals("failOnUnavailable");
-        if (stackTraceElements[index].getMethodName().equals("performPhaseOnShard")) {
-            assert stackTraceElements[index].getClassName().endsWith("CanMatchPreFilterSearchPhase");
-            index++;
-        }
-        assert stackTraceElements[index].getClassName().endsWith("AbstractSearchAsyncAction");
-        assert stackTraceElements[index++].getMethodName().equals("run");
-
-        assert stackTraceElements[index].getClassName().endsWith("AbstractSearchAsyncAction");
-        assert stackTraceElements[index++].getMethodName().equals("executePhase");
-
-        assert stackTraceElements[index].getClassName().endsWith("AbstractSearchAsyncAction");
-        assert stackTraceElements[index++].getMethodName().equals("start");
-
-        assert stackTraceElements[index].getClassName().endsWith("AbstractSearchAsyncAction") == false;
-        return true;
-    }
-
     private void performPhaseOnShard(final int shardIndex, final SearchShardIterator shardIt, final SearchShardTarget shard) {
         if (throttleConcurrentRequests) {
             var pendingExecutions = pendingExecutionsPerNode.computeIfAbsent(
@@ -313,7 +287,6 @@ public void onFailure(Exception e) {
     }
 
     private void failOnUnavailable(int shardIndex, SearchShardIterator shardIt) {
-        assert assertExecuteOnStartThread();
         SearchShardTarget unassignedShard = new SearchShardTarget(null, shardIt.shardId(), shardIt.getClusterAlias());
         onShardFailure(shardIndex, unassignedShard, shardIt, new NoShardAvailableActionException(shardIt.shardId()));
     }