chore : Deprecating FeatureToggles.IsEnabledGlobally (#112885)

* add deprecation on featuremgmt.IsEnabledGlobally

* add nolint reason

* add reasonable deprecation message

* remove junk edits

* add more nolints

* addressing review comments

* Update pkg/services/featuremgmt/models.go

Co-authored-by: Dave Henderson <dave.henderson@grafana.com>

---------

Co-authored-by: Dave Henderson <dave.henderson@grafana.com>

pkg/storage/unified/resource/client.go

@@ -52,6 +52,7 @@ type resourceClient struct {
 }
 
 func NewResourceClient(conn, indexConn grpc.ClientConnInterface, cfg *setting.Cfg, features featuremgmt.FeatureToggles, tracer trace.Tracer) (ResourceClient, error) {
+	//nolint:staticcheck // not yet migrated to OpenFeature
 	if !features.IsEnabledGlobally(featuremgmt.FlagAppPlatformGrpcClientAuth) {
 		return NewLegacyResourceClient(conn, indexConn), nil
 	}

pkg/storage/unified/resource/search_client.go

@@ -115,6 +115,7 @@ func shouldMakeBackgroundCall(ctx context.Context, features featuremgmt.FeatureT
 		return false, err
 	}
 
+	//nolint:staticcheck // not yet migrated to OpenFeature
 	res := features != nil &&
 		features.IsEnabledGlobally(featuremgmt.FlagUnifiedStorageSearchDualReaderEnabled) &&
 		!unifiedIsMainStorage &&