Files app: Remove closure compiler targets which are used only in tests.

ui/file_manager/audio_player/js/compiled_resources2.gyp

Index: ui/file_manager/audio_player/js/compiled_resources2.gyp
diff --git a/ui/file_manager/audio_player/js/compiled_resources2.gyp b/ui/file_manager/audio_player/js/compiled_resources2.gyp
index 73a4527862c5105e4299fd3d7fdf13298ac284ba..933243aad7167987e903877e7b61bb162974b7e4 100644
--- a/ui/file_manager/audio_player/js/compiled_resources2.gyp
+++ b/ui/file_manager/audio_player/js/compiled_resources2.gyp
@@ -19,9 +19,5 @@
       'target_name': 'metadata_worker',
       'includes': ['../../compile_js2.gypi'],
     },
-#    {
-#      'target_name': 'test_util',
-#      'includes': ['../../compile_js2.gypi'],
-#    },
   ],
 }