Remove broken space keyboard binding for accept

Originally space was thought out to also accept the selection, but only
a broken binding was added. As we want to use space for selections in
the future we now remove it entirely.

clintermission/climenu.py

@@ -264,7 +264,6 @@ class CliMenu:
 
         @self._kb.add('c-m', filter=~is_searching)
         @self._kb.add('right', filter=~is_searching)
-        @self._kb.add('c-space', filter=~is_searching)
         def accept(event):
             self._success = True
             event.app.exit()