move data source permission model to enterprise repo (#57615) (#57659)

(cherry picked from commit 92531c5596)

Co-authored-by: Ieva <ieva.vasiljeva@grafana.com>

pkg/services/datasources/models.go

@@ -188,31 +188,6 @@ type GetDataSourceQuery struct {
 	Result *DataSource
 }
 
-// ---------------------
-//  Permissions
-// ---------------------
-
-// Datasource permission
-// Description:
-// * `0` - No Access
-// * `1` - Query
-// Enum: 0,1
-// swagger:model
-type DsPermissionType int
-
-const (
-	DsPermissionNoAccess DsPermissionType = iota
-	DsPermissionQuery
-)
-
-func (p DsPermissionType) String() string {
-	names := map[int]string{
-		int(DsPermissionQuery):    "Query",
-		int(DsPermissionNoAccess): "No Access",
-	}
-	return names[int(p)]
-}
-
 type DatasourcesPermissionFilterQuery struct {
 	User        *user.SignedInUser
 	Datasources []*DataSource