Remove AccessHelper.clearPersistence()

Not needed anymore since it was added to the public API

Author: schmidt-sebastian

firebase-firestore/src/androidTest/java/com/google/firebase/firestore/AccessHelper.java

@@ -15,7 +15,6 @@
 package com.google.firebase.firestore;
 
 import android.content.Context;
-import com.google.android.gms.tasks.Task;
 import com.google.firebase.FirebaseApp;
 import com.google.firebase.firestore.auth.CredentialsProvider;
 import com.google.firebase.firestore.auth.User;
@@ -50,8 +49,4 @@ public static FirebaseFirestore newFirebaseFirestore(
   public static AsyncQueue getAsyncQueue(FirebaseFirestore firestore) {
     return firestore.getAsyncQueue();
   }
-
-  public static Task<Void> clearPersistence(FirebaseFirestore firestore) {
-    return firestore.clearPersistence();
-  }
 }

firebase-firestore/src/androidTest/java/com/google/firebase/firestore/FirestoreTest.java

@@ -1071,7 +1071,7 @@ public void testCanClearPersistenceAfterRestarting() throws Exception {
     waitFor(docRef.set(map("foo", "bar")));
     waitFor(firestore.terminate());
     IntegrationTestUtil.removeFirestore(firestore);
-    waitFor(AccessHelper.clearPersistence(firestore));
+    waitFor(firestore.clearPersistence());
 
     // We restart the app with the same name and options to check that the previous instance's
     // persistent storage is actually cleared after the restart. Calling testFirestore() without the
@@ -1088,7 +1088,7 @@ public void testClearPersistenceWhileRunningFails() {
     FirebaseFirestore firestore = testFirestore();
     waitFor(firestore.enableNetwork());
 
-    Task<Void> transactionTask = AccessHelper.clearPersistence(firestore);
+    Task<Void> transactionTask = firestore.clearPersistence();
     waitForException(transactionTask);
     assertFalse(transactionTask.isSuccessful());
     Exception e = transactionTask.getException();

firebase-firestore/src/androidTest/java/com/google/firebase/firestore/testutil/IntegrationTestUtil.java

@@ -271,7 +271,7 @@ public static FirebaseFirestore testFirestore(
             asyncQueue,
             /*firebaseApp=*/ null,
             /*instanceRegistry=*/ (dbId) -> {});
-    waitFor(AccessHelper.clearPersistence(firestore));
+    waitFor(firestore.clearPersistence());
     firestore.setFirestoreSettings(settings);
     firestoreStatus.put(firestore, true);