Removed a context menu from Files.app's left nav, since it became redundant.

chrome/browser/resources/file_manager/js/file_manager_commands.js

Index: chrome/browser/resources/file_manager/js/file_manager_commands.js
diff --git a/chrome/browser/resources/file_manager/js/file_manager_commands.js b/chrome/browser/resources/file_manager/js/file_manager_commands.js
index 9160562b44c77ad82931fbcf05fef42bfe65273f..aa7d6b0bac69cdf57f8ead4523e609259265ed93 100644
--- a/chrome/browser/resources/file_manager/js/file_manager_commands.js
+++ b/chrome/browser/resources/file_manager/js/file_manager_commands.js
@@ -389,15 +389,3 @@ Commands.zipSelectionCommand = {
         selection && selection.totalCount > 0;
   }
 };
-
-/**
- * Opens Files App help.
- */
-Commands.filesAppHelpCommand = {
-  execute: function() {
-    window.open(FileManager.FILES_APP_HELP, 'help');

[Haruki Sato, 2013/02/08 08:56:00]

Are we going to reuse FileManager.FILES_APP_HELP ?
or will use other link?

[mtomasz, 2013/02/08 10:08:02]

Yep, we will use it in the Gear button menu for non-drive volumes.

-  },
-  canExecute: function(event, fileManager) {
-    event.canExecute = true;
-  }
-};