Messaging: Remove low storage handling

* SMS are the least of your storage issues, if you reach the limit
* Both Intent.ACTION_DEVICE_STORAGE_LOW and
  Intent.ACTION_DEVICE_STORAGE_LOW are not delivered to apps after O
* Remove all now unused strings from all languages - we don't sync those
  with crowdin (yet)

Change-Id: If01f937acdafbb34d5a9e792db54de4761ec4cc5

src/com/android/messaging/receiver/StorageStatusReceiver.java

@@ -1,38 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.messaging.receiver;
-
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-
-import com.android.messaging.sms.SmsStorageStatusManager;
-
-/**
- * Receiver that listens on storage status changes
- */
-public class StorageStatusReceiver extends BroadcastReceiver {
-
-    @Override
-    public void onReceive(final Context context, final Intent intent) {
-        if (Intent.ACTION_DEVICE_STORAGE_LOW.equals(intent.getAction())) {
-            SmsStorageStatusManager.handleStorageLow();
-        } else if (Intent.ACTION_DEVICE_STORAGE_OK.equals(intent.getAction())) {
-            SmsStorageStatusManager.handleStorageOk();
-        }
-    }
-}