This part of code is useless (also harmless) when trying to delete a custom...

This part of code is useless (also harmless) when trying to delete a custom wallpaper in Wallpaper Picker App.
WallpaperManager.removeCustomWallpaper() does all the cleanup work so this part of code becames redundant.

This CL is split from https://codereview.chromium.org/1566713005 and has been lgtmed so land it directly.

BUG=None
TBR=bshe@chromium.org

Review URL: https://codereview.chromium.org/1627483002

Cr-Commit-Position: refs/heads/master@{#371538}

chrome/browser/resources/chromeos/wallpaper_manager/js/event_page.js

@@ -296,11 +296,6 @@ chrome.syncFileSystem.onFileStatusChanged.addListener(function(detail) {
               Constants.CustomWallpaperThumbnailSuffix, '');
           WallpaperUtil.deleteWallpaperFromLocalFS(fileName);
         }
-      } else {  // detail.direction == 'local_to_remote'
-        if (detail.action == 'deleted') {
-          WallpaperUtil.deleteWallpaperFromSyncFS(detail.fileEntry.name);
-          WallpaperUtil.deleteWallpaperFromLocalFS(detail.fileEntry.name);
-        }
       }
     }
   });