AudioPlayer: Update volume controls.

ui/file_manager/audio_player/elements/compiled_resources.gyp

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 {
   'targets': [
     {
-      'target_name': 'volume_controller',
-      'variables': {
-        'depends': [],
-        'externs': []
-      },
-      'includes': [
-        '../../compile_js.gypi'
-      ]
-    },
-    {
       'target_name': 'track_list',
       'variables': {
         'depends': [],
         'externs': [
           '../../externs/es7_workaround.js'
         ]
       },
       'includes': [
         '../../compile_js.gypi'
       ]
@@ skipping 19 matching lines @@
           '<(EXTERNS_DIR)/chrome_extensions.js',
           '../../externs/es7_workaround.js',
         ]
       },
       'includes': [
         '../../compile_js.gypi'
       ]
     }
   ],
 }