MAINT: remove unused retrieveGroup.sql

procedures/retrieveGroup.sql

-/*
- * ** header v3.0
- * This file is a part of the CaosDB Project.
- *
- * Copyright (C) 2018 Research Group Biomedical Physics,
- * Max-Planck-Institute for Dynamics and Self-Organization Göttingen
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <https://www.gnu.org/licenses/>.
- *
- * ** end header
- */
-
-Drop Procedure if exists db_5_0.retrieveGroup;
-Delimiter //
-Create Procedure db_5_0.retrieveGroup(in USERID INT UNSIGNED, in GROUPID INT UNSIGNED)
-
-
-BEGIN 
-IF USERID IS NOT NULL THEN 
-  Select user_id, group_id from groups where user_id = USERID;
-ELSEIF GROUPID IS NOT NULL THEN
-  Select user_id, group_id from groups where group_id = GROUPID;
-END IF;
-
-END;
-//
-delimiter ;