AutoRegistration is supposed to be working with disabled registration (#17219)

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Lauris BH <lauris@nix.lv>

routers/web/user/auth.go

@@ -628,7 +628,7 @@ func SignInOAuthCallback(ctx *context.Context) {
 	}
 
 	if u == nil {
-		if !(setting.Service.DisableRegistration || setting.Service.AllowOnlyInternalRegistration) && setting.OAuth2Client.EnableAutoRegistration {
+		if !setting.Service.AllowOnlyInternalRegistration && setting.OAuth2Client.EnableAutoRegistration {
 			// create new user with details from oauth2 provider
 			var missingFields []string
 			if gothUser.UserID == "" {