don't show key binding in UI when command is not handled or not enabled#2633

BeckerWdf merged 1 commit intoeclipse-platform:mastereclipse-platform/eclipse.platform.ui:masterfrom

tobiasmelcher:show_keys_ui_command_not_enabledtobiasmelcher/eclipse.platform.ui:show_keys_ui_command_not_enabledCopy head branch name to clipboard