commit dbinit aggregated SQL files

This is to avoid the paywall on GNU Taler repository

_dbinit_sql/drop.sql

@@ -0,0 +1,38 @@
+--
+-- This file is part of TALER
+-- Copyright (C) 2014--2022 Taler Systems SA
+--
+-- TALER is free software; you can redistribute it and/or modify it under the
+-- terms of the GNU General Public License as published by the Free Software
+-- Foundation; either version 3, or (at your option) any later version.
+--
+-- TALER 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 General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License along with
+-- TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+--
+
+-- Everything in one big transaction
+BEGIN;
+
+WITH xpatches AS (
+  SELECT patch_name
+  FROM _v.patches
+  WHERE starts_with(patch_name,'exchange-')
+)
+  SELECT _v.unregister_patch(xpatches.patch_name)
+    FROM xpatches;
+
+WITH xpatches AS (
+  SELECT patch_name
+    FROM _v.patches
+   WHERE starts_with(patch_name,'auditor-triggers-')
+)
+  SELECT _v.unregister_patch(xpatches.patch_name)
+    FROM xpatches;
+
+DROP SCHEMA exchange CASCADE;
+
+COMMIT;