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/services/navtree/navtreeimpl/admin.go

@@ -52,6 +52,7 @@ func (s *ServiceImpl) getAdminNode(c *contextmodel.ReqContext) (*navtree.NavLink
 			Url:      s.cfg.AppSubURL + "/admin/migrate-to-cloud",
 		})
 	}
+	//nolint:staticcheck // not yet migrated to OpenFeature
 	if c.HasRole(identity.RoleAdmin) &&
 		(s.cfg.StackID == "" || // show OnPrem even when provisioning is disabled
 			s.features.IsEnabledGlobally(featuremgmt.FlagProvisioning)) {

pkg/services/navtree/navtreeimpl/applinks.go

@@ -400,6 +400,7 @@ func (s *ServiceImpl) readNavigationSettings() {
 		"k6-app":                           {SectionID: navtree.NavIDTestingAndSynthetics, SortWeight: 1, Text: "Performance"},
 	}
 
+	//nolint:staticcheck // not yet migrated to OpenFeature
 	if s.features.IsEnabledGlobally(featuremgmt.FlagGrafanaAdvisor) {
 		s.navigationAppConfig["grafana-advisor-app"] = NavigationAppConfig{
 			SectionID: navtree.NavIDCfg,