Se corrige plantilla SQL. Fixes bug#AL-4549

src/db/backup/oracle/V20240729_1500__AL-4549.sql

@@ -40,10 +40,7 @@ begin
    )';
  exception when object_exists then null;
 end;
-/
-declare
-    object_exists exception;
-    pragma exception_init (object_exists , -00955);
+
 begin
   execute immediate
 	'CREATE SEQUENCE "SOLICITUD_EXPRESO_SEQ" MINVALUE 10000 MAXVALUE 9999999999999999999999999999 INCREMENT BY 1 START WITH 10000';