Replace a leftover i18n-values attribute in actions_submenu_unittest.js.

Bug: 923206
Change-Id: I2f8c5d5cdf73387972270cb9e9cdf8518cc986e6
Reviewed-on: https://chromium-review.googlesource.com/c/1433349
Auto-Submit: Sam McNally <sammc@chromium.org>
Commit-Queue: Noel Gordon <noel@chromium.org>
Reviewed-by: Noel Gordon <noel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#625825}

ui/file_manager/file_manager/foreground/js/ui/actions_submenu_unittest.js

@@ -9,7 +9,7 @@ var separator = null;
 
 document.write(`
     <command id="share" label="Share"></command>
-    <command id="manage-in-drive" i18n-values="Manage in Drive"></command>
+    <command id="manage-in-drive" label="Manage in Drive"></command>
     <command id="toggle-pinned" label="Toggle pinned"></command>
     <command id="remove-folder-shortcut" label="Remove folder shortcut">
     </command>