Revert "MT#33005 Add group to the table speed_dial"

This reverts commit 5f34f84b04.

Reason for revert: upstream provide us with a solution that doesn't need a kamailio change

Change-Id: Ifdb7f8c55f27498a880cc35a104e20472e6e69f7

db_scripts/diff/15741.down

@@ -1,6 +0,0 @@
-use kamailio;
-set autocommit=0;
-
-ALTER TABLE speed_dial DROP COLUMN group_id;
-
-COMMIT;

db_scripts/diff/15741.up

@@ -1,6 +0,0 @@
-use kamailio;
-set autocommit=0;
-
-ALTER TABLE speed_dial ADD COLUMN group_id varchar(128);
-
-COMMIT;