Remove superfluous v6 http{,s} payload and handler
Missed file
Land #3270, @jlee-r7 deprecation ipv6 payloads

These are not needed, since you can just config the regular handler now
and pick either.

This resolves the conflict (rm'ed the old modules)

Conflicts:
	modules/payloads/stagers/windows/reverse_ipv6_http.rb
	modules/payloads/stagers/windows/reverse_ipv6_https.rb