[ML] Unmute DeleteExpiredDataIT.testDeleteExpiredDataNoThrottle (#63408)

This test appears to work again following the Lucene bug fix
that was integrated in #63395

x-pack/plugin/ml/qa/native-multi-node-tests/src/javaRestTest/java/org/elasticsearch/xpack/ml/integration/DeleteExpiredDataIT.java

@@ -96,7 +96,6 @@ public class DeleteExpiredDataIT extends MlNativeAutodetectIntegTestCase {
         client().execute(DeleteExpiredDataAction.INSTANCE, new DeleteExpiredDataAction.Request()).get();
     }
 
-    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/63379")
     public void testDeleteExpiredDataNoThrottle() throws Exception {
         testExpiredDeletion(null, 10010);
     }