Completely disable a keyboard shortcut for one application When using Microsoft Remote Desktop, I frequently find myself accidentally trying to close browser tabs with ⌘W (which is mapped to "Close Connection" by default).  I was at least able to stop it from closing the connection every time by mapping it to one of the help menu options, but it's still annoying to have a window pop up every time I do it.

What I really want is for it to do nothing, but all I can find is how to assign a different key combination to the command (which doesn't work in this case for some reason, it just adds it as a second shortcut in addition to ⌘W) or how to assign the key combination to a different command. Is there any way to disable the shortcut entirely instead?

Update: this seems to specifically be a problem with Microsoft Remote Desktop version 8.
This works on MS RDC v10 but not the old v8.

Replacing Close  Cmd ⌘   W  with a 'garbage' command effectively removes the hot key from the interface - though it doesn't make it work as Close Tab in Windows, it seems to just ignore it.
 Ctrl ⌃   W  does close tabs [as expected].