Revert "Update for 13.15.0-rc1"

This reverts commit 552cf009c0.

Change-Id: Ie345bea481261b761c44079e9472622040fda302

contrib/realtime/mssql/mssql_cdr.sql

@@ -1,44 +0,0 @@
-BEGIN TRANSACTION;
-
-CREATE TABLE alembic_version (
-    version_num VARCHAR(32) NOT NULL
-);
-
-GO
-
--- Running upgrade  -> 210693f3123d
-
-CREATE TABLE cdr (
-    accountcode VARCHAR(20) NULL, 
-    src VARCHAR(80) NULL, 
-    dst VARCHAR(80) NULL, 
-    dcontext VARCHAR(80) NULL, 
-    clid VARCHAR(80) NULL, 
-    channel VARCHAR(80) NULL, 
-    dstchannel VARCHAR(80) NULL, 
-    lastapp VARCHAR(80) NULL, 
-    lastdata VARCHAR(80) NULL, 
-    start DATETIME NULL, 
-    answer DATETIME NULL, 
-    [end] DATETIME NULL, 
-    duration INTEGER NULL, 
-    billsec INTEGER NULL, 
-    disposition VARCHAR(45) NULL, 
-    amaflags VARCHAR(45) NULL, 
-    userfield VARCHAR(256) NULL, 
-    uniqueid VARCHAR(150) NULL, 
-    linkedid VARCHAR(150) NULL, 
-    peeraccount VARCHAR(20) NULL, 
-    sequence INTEGER NULL
-);
-
-GO
-
-INSERT INTO alembic_version (version_num) VALUES ('210693f3123d');
-
-GO
-
-COMMIT;
-
-GO
-