Revert "AuthN: Managed plugin Service Accounts general availability" (#94270)

Revert "AuthN: Managed plugin Service Accounts general availability (#93384)"

This reverts commit 943525391e.

pkg/services/featuremgmt/registry.go

@@ -675,9 +675,8 @@ var (
 			Name:              "externalServiceAccounts",
 			Description:       "Automatic service account and token setup for plugins",
 			HideFromAdminPage: true,
-			Stage:             FeatureStageGeneralAvailability,
+			Stage:             FeatureStagePublicPreview,
 			Owner:             identityAccessTeam,
-			Expression:        "true", // enabled by default
 		},
 		{
 			Name:         "panelMonitoring",

pkg/services/featuremgmt/toggles_gen.csv

@@ -88,7 +88,7 @@ wargamesTesting,experimental,@grafana/hosted-grafana-team,false,false,false
 alertingInsights,GA,@grafana/alerting-squad,false,false,true
 externalCorePlugins,experimental,@grafana/plugins-platform-backend,false,false,false
 pluginsAPIMetrics,experimental,@grafana/plugins-platform-backend,false,false,true
-externalServiceAccounts,GA,@grafana/identity-access-team,false,false,false
+externalServiceAccounts,preview,@grafana/identity-access-team,false,false,false
 panelMonitoring,GA,@grafana/dataviz-squad,false,false,true
 enableNativeHTTPHistogram,experimental,@grafana/grafana-backend-services-squad,false,true,false
 disableClassicHTTPHistogram,experimental,@grafana/grafana-backend-services-squad,false,true,false

pkg/services/featuremgmt/toggles_gen.json

@@ -1234,18 +1234,14 @@
     {
       "metadata": {
         "name": "externalServiceAccounts",
-        "resourceVersion": "1726562284896",
-        "creationTimestamp": "2023-09-28T07:26:37Z",
-        "annotations": {
-          "grafana.app/updatedTimestamp": "2024-09-17 08:38:04.896869045 +0000 UTC"
-        }
+        "resourceVersion": "1718727528075",
+        "creationTimestamp": "2023-09-28T07:26:37Z"
       },
       "spec": {
         "description": "Automatic service account and token setup for plugins",
-        "stage": "GA",
+        "stage": "preview",
         "codeowner": "@grafana/identity-access-team",
-        "hideFromAdminPage": true,
-        "expression": "true"
+        "hideFromAdminPage": true
       }
     },
     {