fix the build breakage caused by merge resolution

commit 5d409ace19 broke the build

Change-Id: I62f55d8c1d023190af5171864998a2a4b2090a37
Signed-off-by: Alexey Polyudov <apolyudov@google.com>
(cherry picked from commit 8c041f7862)

src/com/android/settings/bluetooth/LocalBluetoothPreferences.java

@@ -148,20 +148,6 @@ final class LocalBluetoothPreferences {
         editor.apply();
     }
 
-    static void persistDiscoveringTimestamp(final Context context) {
-        // Load the shared preferences and edit it on a background
-        // thread (but serialized!).
-        QueuedWork.queue(new Runnable() {
-                public void run() {
-                    SharedPreferences.Editor editor = getSharedPreferences(context).edit();
-                    editor.putLong(
-                            KEY_DISCOVERING_TIMESTAMP,
-                        System.currentTimeMillis());
-                    editor.apply();
-                }
-            }, false);
-    }
-
     static boolean hasDockAutoConnectSetting(Context context, String addr) {
         return getSharedPreferences(context).contains(KEY_DOCK_AUTO_CONNECT + addr);
     }