Plugins: Remove pluginsCDNSyncLoader feature toggle (#108389)

* remove pluginsCDNSyncLoader feature toggle

* fix lint issues

* fix other linter issue

packages/grafana-data/src/types/featureToggles.gen.ts

@@ -847,10 +847,6 @@ export interface FeatureToggles {
   */
   grafanaconThemes?: boolean;
   /**
-  * Loads plugins from CDN synchronously
-  */
-  pluginsCDNSyncLoader?: boolean;
-  /**
   * Enables the new Jira integration for contact points in cloud alert managers.
   */
   alertingJiraIntegration?: boolean;

pkg/plugins/config/config.go

@@ -30,10 +30,9 @@ type PluginManagementCfg struct {
 
 // Features contains the feature toggles used for the plugin management system.
 type Features struct {
-	SkipHostEnvVarsEnabled      bool
-	SriChecksEnabled            bool
-	PluginsCDNSyncLoaderEnabled bool
-	LocalizationForPlugins      bool
+	SkipHostEnvVarsEnabled bool
+	SriChecksEnabled       bool
+	LocalizationForPlugins bool
 	// Needed only until Tempo Alerting / metrics TraceQL is stable
 	// https://github.com/grafana/grafana/issues/106888
 	TempoAlertingEnabled bool

pkg/plugins/manager/loader/loader.go

@@ -93,10 +93,8 @@ func (l *Loader) Load(ctx context.Context, src plugins.PluginSource) ([]*plugins
 	}
 	validateResults := make(chan validateResult, len(bootstrappedPlugins))
 
-	// If the PluginsCDNSyncLoaderEnabled feature is enabled, validate plugins in parallel.
-	// Otherwise, validate plugins sequentially.
 	var limitSize int
-	if l.cfg.Features.PluginsCDNSyncLoaderEnabled && src.PluginClass(ctx) == plugins.ClassCDN {
+	if src.PluginClass(ctx) == plugins.ClassCDN {
 		limitSize = min(len(bootstrappedPlugins), concurrencyLimit)
 	} else {
 		limitSize = 1

pkg/services/featuremgmt/registry.go

@@ -1447,12 +1447,6 @@ var (
 			RequiresRestart:   true,
 			Expression:        "true",
 		},
-		{
-			Name:        "pluginsCDNSyncLoader",
-			Description: "Loads plugins from CDN synchronously",
-			Stage:       FeatureStageExperimental,
-			Owner:       grafanaPluginsPlatformSquad,
-		},
 		{
 			Name:         "alertingJiraIntegration",
 			Description:  "Enables the new Jira integration for contact points in cloud alert managers.",

pkg/services/featuremgmt/toggles_gen.csv

@@ -189,7 +189,6 @@ datasourceConnectionsTab,privatePreview,@grafana/plugins-platform-backend,false,
 fetchRulesUsingPost,experimental,@grafana/alerting-squad,false,false,false
 newLogsPanel,experimental,@grafana/observability-logs,false,false,true
 grafanaconThemes,GA,@grafana/grafana-frontend-platform,false,true,false
-pluginsCDNSyncLoader,experimental,@grafana/plugins-platform-backend,false,false,false
 alertingJiraIntegration,experimental,@grafana/alerting-squad,false,false,true
 useScopesNavigationEndpoint,experimental,@grafana/grafana-frontend-platform,false,false,true
 scopeSearchAllLevels,experimental,@grafana/grafana-frontend-platform,false,false,false

pkg/services/featuremgmt/toggles_gen.go

@@ -767,10 +767,6 @@ const (
 	// Enables the temporary themes for GrafanaCon
 	FlagGrafanaconThemes = "grafanaconThemes"
 
-	// FlagPluginsCDNSyncLoader
-	// Loads plugins from CDN synchronously
-	FlagPluginsCDNSyncLoader = "pluginsCDNSyncLoader"
-
 	// FlagAlertingJiraIntegration
 	// Enables the new Jira integration for contact points in cloud alert managers.
 	FlagAlertingJiraIntegration = "alertingJiraIntegration"

pkg/services/featuremgmt/toggles_gen.json

@@ -2526,7 +2526,8 @@
       "metadata": {
         "name": "pluginsCDNSyncLoader",
         "resourceVersion": "1750434297879",
-        "creationTimestamp": "2025-02-07T10:07:08Z"
+        "creationTimestamp": "2025-02-07T10:07:08Z",
+        "deletionTimestamp": "2025-07-21T10:13:07Z"
       },
       "spec": {
         "description": "Loads plugins from CDN synchronously",

pkg/services/pluginsintegration/pluginconfig/config.go

@@ -30,12 +30,11 @@ func ProvidePluginManagementConfig(cfg *setting.Cfg, settingProvider setting.Pro
 		cfg.PluginsCDNURLTemplate,
 		cfg.AppURL,
 		config.Features{
-			SkipHostEnvVarsEnabled:      features.IsEnabledGlobally(featuremgmt.FlagPluginsSkipHostEnvVars),
-			SriChecksEnabled:            features.IsEnabledGlobally(featuremgmt.FlagPluginsSriChecks),
-			PluginsCDNSyncLoaderEnabled: features.IsEnabledGlobally(featuremgmt.FlagPluginsCDNSyncLoader),
-			LocalizationForPlugins:      features.IsEnabledGlobally(featuremgmt.FlagLocalizationForPlugins),
-			TempoAlertingEnabled:        features.IsEnabledGlobally(featuremgmt.FlagTempoAlerting),
-			PluginAssetProvider:         features.IsEnabledGlobally(featuremgmt.FlagPluginAssetProvider),
+			SkipHostEnvVarsEnabled: features.IsEnabledGlobally(featuremgmt.FlagPluginsSkipHostEnvVars),
+			SriChecksEnabled:       features.IsEnabledGlobally(featuremgmt.FlagPluginsSriChecks),
+			LocalizationForPlugins: features.IsEnabledGlobally(featuremgmt.FlagLocalizationForPlugins),
+			TempoAlertingEnabled:   features.IsEnabledGlobally(featuremgmt.FlagTempoAlerting),
+			PluginAssetProvider:    features.IsEnabledGlobally(featuremgmt.FlagPluginAssetProvider),
 		},
 		cfg.GrafanaComAPIURL,
 		cfg.DisablePlugins,