Prometheus: Use the frontend package in Prometheus and remove feature toggle (#86080)

* add history links for monaco completion provider folder

* add history links for monaco query field folder

* add history links for components folder

* add history links for configuration folder

* add history links for dashboard json folder

* add history links for gcopypaste folder

* add history link for variableMigration

* add history link for querybuilder/components/metrics-modal folder

* add history link for querybuilder/components/promqail folder

* add history links for querybuilder/components folder

* add history links for querybuilder/hooks folder

* add history links for querybuilder/shared folder

* add history links for querybuilder folder

* add history links for querycache folder

* add history links for src folder

* use frontend package and custom auth in module.ts

* remove files and fix import issues

* remove usePrometheusFrontendPackage

* remove extra files

* update betterer

* remove extra files after rebase

* fix betterer for rebase

* fix e2e flakiness

pkg/services/featuremgmt/registry.go

@@ -1164,13 +1164,6 @@ var (
 			HideFromDocs:      true,
 			HideFromAdminPage: true,
 		},
-		{
-			Name:         "usePrometheusFrontendPackage",
-			Description:  "Use the @grafana/prometheus frontend package in core Prometheus.",
-			Stage:        FeatureStageGeneralAvailability,
-			FrontendOnly: true,
-			Owner:        grafanaObservabilityMetricsSquad,
-		},
 		{
 			Name:              "oauthRequireSubClaim",
 			Description:       "Require that sub claims is present in oauth tokens.",

pkg/services/featuremgmt/toggles_gen.csv

@@ -155,7 +155,6 @@ betterPageScrolling,GA,@grafana/grafana-frontend-platform,false,false,true
 authAPIAccessTokenAuth,experimental,@grafana/identity-access-team,false,false,false
 scopeFilters,experimental,@grafana/dashboards-squad,false,false,false
 ssoSettingsSAML,experimental,@grafana/identity-access-team,false,false,false
-usePrometheusFrontendPackage,GA,@grafana/observability-metrics,false,false,true
 oauthRequireSubClaim,experimental,@grafana/identity-access-team,false,false,false
 newDashboardWithFiltersAndGroupBy,experimental,@grafana/dashboards-squad,false,false,false
 cloudWatchNewLabelParsing,GA,@grafana/aws-datasources,false,false,false

pkg/services/featuremgmt/toggles_gen.go

@@ -631,10 +631,6 @@ const (
 	// Use the new SSO Settings API to configure the SAML connector
 	FlagSsoSettingsSAML = "ssoSettingsSAML"
 
-	// FlagUsePrometheusFrontendPackage
-	// Use the @grafana/prometheus frontend package in core Prometheus.
-	FlagUsePrometheusFrontendPackage = "usePrometheusFrontendPackage"
-
 	// FlagOauthRequireSubClaim
 	// Require that sub claims is present in oauth tokens.
 	FlagOauthRequireSubClaim = "oauthRequireSubClaim"

pkg/services/featuremgmt/toggles_gen.json

@@ -1468,6 +1468,7 @@
         "name": "usePrometheusFrontendPackage",
         "resourceVersion": "1712841379965",
         "creationTimestamp": "2024-04-09T05:07:41Z",
+        "deletionTimestamp": "2024-04-12T23:12:45Z",
         "annotations": {
           "grafana.app/updatedTimestamp": "2024-04-11 13:16:19.965312 +0000 UTC"
         }