DataSources: Remove unused cfg from core Grafana data source (#56188)

* remove unused cfg from grafana ds

* fix test

pkg/plugins/manager/manager_integration_test.go

@@ -96,7 +96,7 @@ func TestIntegrationPluginManager(t *testing.T) {
 	my := mysql.ProvideService(cfg, hcp)
 	ms := mssql.ProvideService(cfg)
 	sv2 := searchV2.ProvideService(cfg, sqlstore.InitTestDB(t), nil, nil, tracer, features, nil, nil)
-	graf := grafanads.ProvideService(cfg, sv2, nil)
+	graf := grafanads.ProvideService(sv2, nil)
 
 	coreRegistry := coreplugin.ProvideCoreRegistry(am, cw, cm, es, grap, idb, lk, otsdb, pr, tmpo, td, pg, my, ms, graf)
 

pkg/tsdb/grafanads/grafana.go

@@ -14,7 +14,6 @@ import (
 	"github.com/grafana/grafana/pkg/services/datasources"
 	"github.com/grafana/grafana/pkg/services/searchV2"
 	"github.com/grafana/grafana/pkg/services/store"
-	"github.com/grafana/grafana/pkg/setting"
 	"github.com/grafana/grafana/pkg/tsdb/testdatasource"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promauto"
@@ -51,11 +50,11 @@ var (
 	)
 )
 
-func ProvideService(cfg *setting.Cfg, search searchV2.SearchService, store store.StorageService) *Service {
-	return newService(cfg, search, store)
+func ProvideService(search searchV2.SearchService, store store.StorageService) *Service {
+	return newService(search, store)
 }
 
-func newService(cfg *setting.Cfg, search searchV2.SearchService, store store.StorageService) *Service {
+func newService(search searchV2.SearchService, store store.StorageService) *Service {
 	s := &Service{
 		search: search,
 		store:  store,