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/util/BugleGservicesKeys.java

@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2015 The Android Open Source Project
+ * Copyright (C) 2024 The LineageOS Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -119,20 +120,6 @@ public final class BugleGservicesKeys {
             "bugle_sms_full_sync_backoff_time";
     public static final long SMS_FULL_SYNC_BACKOFF_TIME_MILLIS_DEFAULT = 60 * 60 * 1000;
 
-    /**
-     * Time duration to retain the most recent SMS messages for SMS storage purging
-     *
-     * Format:
-     *   <number>(w|m|y)
-     * Examples:
-     *   "1y" -- a year
-     *   "2w" -- two weeks
-     *   "6m" -- six months
-     */
-    public static final String SMS_STORAGE_PURGING_MESSAGE_RETAINING_DURATION =
-            "bugle_sms_storage_purging_message_retaining_duration";
-    public static final String SMS_STORAGE_PURGING_MESSAGE_RETAINING_DURATION_DEFAULT = "1m";
-
     /**
      * MMS UA profile url.
      *