fix delete user failed on sqlite (#1321)

models/external_login_user.go

@@ -67,8 +67,8 @@ func RemoveAccountLink(user *User, loginSourceID int64) (int64, error) {
 	return deleted, err
 }
 
-// RemoveAllAccountLinks will remove all external login sources for the given user
-func RemoveAllAccountLinks(user *User) error {
-	_, err := x.Delete(&ExternalLoginUser{UserID: user.ID})
+// removeAllAccountLinks will remove all external login sources for the given user
+func removeAllAccountLinks(e Engine, user *User) error {
+	_, err := e.Delete(&ExternalLoginUser{UserID: user.ID})
 	return err
 }

models/user.go

@@ -990,7 +990,7 @@ func deleteUser(e *xorm.Session, u *User) error {
 	}
 
 	// ***** START: ExternalLoginUser *****
-	if err = RemoveAllAccountLinks(u); err != nil {
+	if err = removeAllAccountLinks(e, u); err != nil {
 		return fmt.Errorf("ExternalLoginUser: %v", err)
 	}
 	// ***** END: ExternalLoginUser *****