Revert "mute failing filerealm hash caching tests (#42304)"

This reverts commit 39fbed1577.

x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/authc/file/FileRealmTests.java

@@ -89,7 +89,6 @@ public class FileRealmTests extends ESTestCase {
         return new RealmConfig(REALM_IDENTIFIER, settings, TestEnvironment.newEnvironment(settings), threadContext);
     }
 
-    @AwaitsFix(bugUrl="https://github.com/elastic/elasticsearch/issues/42267")
     public void testAuthenticateCaching() throws Exception {
         Settings settings = Settings.builder()
             .put(RealmSettings.realmSettingPrefix(REALM_IDENTIFIER) + "cache.hash_algo",

x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/authc/support/CachingUsernamePasswordRealmTests.java

@@ -63,7 +63,6 @@ public class CachingUsernamePasswordRealmTests extends ESTestCase {
         }
     }
 
-    @AwaitsFix(bugUrl="https://github.com/elastic/elasticsearch/issues/42267")
     public void testCacheSettings() {
         String cachingHashAlgo = randomFrom(Hasher.getAvailableAlgoCacheHash());
         int maxUsers = randomIntBetween(10, 100);