Remove unused variable from web_app_shortcut_win

This change removes an unused variable from UpdatePlatformShortcuts().
It also removes a stray whitespace.

Change-Id: Ib2fa8cf9b87bd4971c5da6e07d7916db4009040f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2459065Reviewed-by: Glen Robertson <glenrob@chromium.org>
Commit-Queue: Jesse McKenna <jessemckenna@google.com>
Cr-Commit-Position: refs/heads/master@{#815174}

chrome/browser/web_applications/components/web_app_shortcut.h

@@ -198,7 +198,7 @@ void PostShortcutIOTaskAndReply(
 scoped_refptr<base::TaskRunner> GetShortcutIOTaskRunner();
 
 // Sanitizes |name| and returns a version of it that is safe to use as an
-// on-disk file name .
+// on-disk file name.
 base::FilePath GetSanitizedFileName(const base::string16& name);
 
 base::FilePath GetShortcutDataDir(const ShortcutInfo& shortcut_info);

chrome/browser/web_applications/components/web_app_shortcut_win.cc

@@ -444,10 +444,6 @@ void UpdatePlatformShortcuts(const base::FilePath& web_app_path,
   base::ScopedBlockingCall scoped_blocking_call(FROM_HERE,
                                                 base::BlockingType::MAY_BLOCK);
 
-  // Generates file name to use with persisted ico and shortcut file.
-  base::FilePath file_name =
-      web_app::internals::GetSanitizedFileName(shortcut_info.title);
-
   if (old_app_title != shortcut_info.title) {
     // The app's title has changed. Delete all existing app shortcuts and
     // recreate them in any locations they already existed (but do not add them