chore: remove sqlstore & mockstore dependencies from (most) packages (#57087)

* chore: add alias for InitTestDB and Session

Adds an alias for the sqlstore InitTestDB and Session, and updates tests using these to reduce dependencies on the sqlstore.Store.

* next pass of removing sqlstore imports
* last little bit
* remove mockstore where possible

pkg/api/user_test.go

@@ -14,6 +14,7 @@ import (
 
 	"github.com/grafana/grafana/pkg/api/dtos"
 	"github.com/grafana/grafana/pkg/components/simplejson"
+	"github.com/grafana/grafana/pkg/infra/db"
 	"github.com/grafana/grafana/pkg/infra/usagestats"
 	"github.com/grafana/grafana/pkg/models"
 	acmock "github.com/grafana/grafana/pkg/services/accesscontrol/mock"
@@ -23,7 +24,6 @@ import (
 	"github.com/grafana/grafana/pkg/services/searchusers/filters"
 	"github.com/grafana/grafana/pkg/services/secrets/database"
 	secretsManager "github.com/grafana/grafana/pkg/services/secrets/manager"
-	"github.com/grafana/grafana/pkg/services/sqlstore"
 	"github.com/grafana/grafana/pkg/services/sqlstore/mockstore"
 	"github.com/grafana/grafana/pkg/services/user"
 	"github.com/grafana/grafana/pkg/services/user/userimpl"
@@ -33,7 +33,7 @@ import (
 
 func TestUserAPIEndpoint_userLoggedIn(t *testing.T) {
 	settings := setting.NewCfg()
-	sqlStore := sqlstore.InitTestDB(t)
+	sqlStore := db.InitTestDB(t)
 	hs := &HTTPServer{
 		Cfg:           settings,
 		SQLStore:      sqlStore,