Found http prefix in gocb dynamic authenticator

Regarding the Credentials method that gets called by gocb,

func (dynAuth *DynamicAuthenticator) Credentials(req gocb.AuthCredsRequest) ([]gocb.UserPassPair, error)

the req.Endpoint sometimes has http prefix and sometimes it doesn't - 

For example,

req.Endpoint is sometimes  http://172.23.104.46:8091, sometimes it's 172.23.104.46:11210.

Please remove the http prefix to maintain uniformity.