Don't provide a "Already registered" option if GoogleLogin replaces MW login
Don't provide a "Already registered" option if GoogleLogin replaces MW login

It doesn't make sense to redirect to the login form from Special:GoogleLogin
in this case, as GoogleLogin automatically redirects to Special:GoogleLogin
from Special:UserLogin.

Bug: T131984
Change-Id: I81c41c703cc808ddcff46807094364bc1132b428

wikimedia/mediawiki-extensions-GoogleLogin,wikimedia/mediawiki-extensions-GoogleLogin