Bug fix: checkbox and email type(Crome bug) not working

As cursor-click & form-update event on hub causing problem with check and uncheck of the checkbox, so the checkbox get checked in form-update & then cursor-click will uncheck it as check box work as on & off. With radio button its working fine, As cursor-click will do the check uncheck  operation so no need to do here, Hence commenting it.
Bug in Chrome, refer to bellow bug id.
https://code.google.com/p/chromium/issues/detail?id=324360