Revert "Re-establish streams when App Check token expires. (#3328)" (#3462)

This reverts commit 26d0992.

Author: ehsannas

firebase-firestore/src/main/java/com/google/firebase/firestore/core/FirestoreClient.java

@@ -129,13 +129,8 @@ public FirestoreClient(
 
     appCheckProvider.setChangeListener(
         (String appCheckToken) -> {
-          // This will ensure that once a new App Check token is retrieved, streams are
-          // re-established using the new token.
-          asyncQueue.enqueueAndForget(
-              () -> {
-                Logger.debug(LOG_TAG, "App Check token changed.");
-                remoteStore.handleCredentialChange();
-              });
+          // Register an empty credentials change listener to activate token
+          // refresh.
         });
   }