AuthN: Remove embedded oauth server (#83146)

* AuthN: Remove embedded oauth server

* Restore main

* go mod tidy

* Fix problem

* Remove permission intersection

* Fix test and lint

* Fix TestData test

* Revert to origin/main

* Update go.mod

* Update go.mod

* Update go.sum

pkg/services/authn/authnimpl/service.go

@@ -24,7 +24,6 @@ import (
 	"github.com/grafana/grafana/pkg/services/authn"
 	"github.com/grafana/grafana/pkg/services/authn/authnimpl/sync"
 	"github.com/grafana/grafana/pkg/services/authn/clients"
-	"github.com/grafana/grafana/pkg/services/extsvcauth/oauthserver"
 	"github.com/grafana/grafana/pkg/services/featuremgmt"
 	"github.com/grafana/grafana/pkg/services/ldap/service"
 	"github.com/grafana/grafana/pkg/services/login"
@@ -72,7 +71,7 @@ func ProvideService(
 	features *featuremgmt.FeatureManager, oauthTokenService oauthtoken.OAuthTokenService,
 	socialService social.Service, cache *remotecache.RemoteCache,
 	ldapService service.LDAP, registerer prometheus.Registerer,
-	signingKeysService signingkeys.Service, oauthServer oauthserver.OAuth2Server,
+	signingKeysService signingkeys.Service,
 	settingsProviderService setting.Provider,
 ) *Service {
 	s := &Service{
@@ -136,9 +135,10 @@ func ProvideService(
 		s.RegisterClient(clients.ProvideJWT(jwtService, cfg))
 	}
 
-	if s.cfg.ExtendedJWTAuthEnabled && features.IsEnabledGlobally(featuremgmt.FlagExternalServiceAuth) {
-		s.RegisterClient(clients.ProvideExtendedJWT(userService, cfg, signingKeysService, oauthServer))
-	}
+	// FIXME (gamab): Commenting that out for now as we want to re-use the client for external service auth
+	// if s.cfg.ExtendedJWTAuthEnabled && features.IsEnabledGlobally(featuremgmt.FlagExternalServiceAuth) {
+	// 	s.RegisterClient(clients.ProvideExtendedJWT(userService, cfg, signingKeysService, oauthServer))
+	// }
 
 	for name := range socialService.GetOAuthProviders() {
 		clientName := authn.ClientWithPrefix(name)