FeatureFlags: Revert managing feature flags outside of settings.Cfg (#44382)

* Revert "FeatureToggles: register all enterprise feature toggles (#44336)"

This reverts commit f53b3fb007.

* Revert "FeatureFlags: manage feature flags outside of settings.Cfg (#43692)"

This reverts commit f94c0decbd.

pkg/api/frontendsettings_test.go

@@ -9,7 +9,6 @@ import (
 
 	"github.com/grafana/grafana/pkg/bus"
 	accesscontrolmock "github.com/grafana/grafana/pkg/services/accesscontrol/mock"
-	"github.com/grafana/grafana/pkg/services/featuremgmt"
 	"github.com/grafana/grafana/pkg/services/licensing"
 	"github.com/grafana/grafana/pkg/services/rendering"
 	"github.com/grafana/grafana/pkg/services/sqlstore"
@@ -20,10 +19,9 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func setupTestEnvironment(t *testing.T, cfg *setting.Cfg, features *featuremgmt.FeatureManager) (*web.Mux, *HTTPServer) {
+func setupTestEnvironment(t *testing.T, cfg *setting.Cfg) (*web.Mux, *HTTPServer) {
 	t.Helper()
 	sqlstore.InitTestDB(t)
-	cfg.IsFeatureToggleEnabled = features.IsEnabled
 
 	{
 		oldVersion := setting.BuildVersion
@@ -39,10 +37,9 @@ func setupTestEnvironment(t *testing.T, cfg *setting.Cfg, features *featuremgmt.
 	sqlStore := sqlstore.InitTestDB(t)
 
 	hs := &HTTPServer{
-		Cfg:      cfg,
-		Features: features,
-		Bus:      bus.GetBus(),
-		License:  &licensing.OSSLicensingService{Cfg: cfg},
+		Cfg:     cfg,
+		Bus:     bus.GetBus(),
+		License: &licensing.OSSLicensingService{Cfg: cfg},
 		RenderService: &rendering.RenderingService{
 			Cfg:                   cfg,
 			RendererPluginManager: &fakeRendererManager{},
@@ -76,8 +73,7 @@ func TestHTTPServer_GetFrontendSettings_hideVersionAnonymous(t *testing.T) {
 	cfg.Env = "testing"
 	cfg.BuildVersion = "7.8.9"
 	cfg.BuildCommit = "01234567"
-
-	m, hs := setupTestEnvironment(t, cfg, featuremgmt.WithFeatures())
+	m, hs := setupTestEnvironment(t, cfg)
 
 	req := httptest.NewRequest(http.MethodGet, "/api/frontend/settings", nil)