Remove fastclick support

[stevenjoezhang]

Breaking change

-fastclick: false
vendors:
-  fastclick:

According to the docs of fastclick:

Note: As of late 2015 most mobile browsers - notably Chrome and Safari - no longer have a 300ms touch delay, so fastclick offers no benefit on newer browsers, and risks introducing bugs into your application. Consider carefully whether you really need to use it.

And:
https://developers.google.com/web/updates/2013/12/300ms-tap-delay-gone-away
https://juejin.im/post/5cdf84e3f265da1bb564c79a

Does this PR introduce a breaking change?

• Yes.
• No.