Revert "Respond to ngDisabled directive on the ui-switch element."
Revert "Respond to ngDisabled directive on the ui-switch element."

This reverts commit 7607316fce78a68c32359bad7c00347b841b135f.

antishow/NgSwitchery,antishow/NgSwitchery,servergrove/NgSwitchery,riosc/NgSwitchery