Can't remove 'required'-rule when element has 'required'-attribute

[ischas]

When the element has a 'required'-attribute, you can't remove it by calling $(element).rules('remove','required').

https://jsfiddle.net/6hnw855z/1/

A pull-request to solve the problem will follow up.

[k0stenko]

try to use double quotes with "remove"
$(element).rules("remove",'required')

[Arkni]

Closing for now. See #1746 (comment) for reason.