ß71: FinderOpenTrashAction action

[pjrobertson]

This action exists in the Finder plugin, but doesn't seem to do anything (not even the related method openTrash: exists)

I say we just remove the .plist entry to avoid confusion/crashes for users.
Perhaps this has cropped up in ß71 due to people now having a localised 'open' action for the real action, but not for this dodgy one (we haven't localised the Finder plugin .plist)