sca: remove old SQL table creation file

- use make dbschema to generate sql from xml table schema instead.

modules/sca/sca.sql

@@ -1,17 +0,0 @@
-INSERT INTO version (table_name, table_version) values ('sca_subscriptions', '0');
-CREATE TABLE sca_subscriptions (
-    id INT(10) UNSIGNED AUTO_INCREMENT PRIMARY KEY NOT NULL,
-    subscriber VARCHAR(255) NOT NULL,
-    aor VARCHAR(255) NOT NULL,
-    event INT(1) NOT NULL,
-    expires INT(11) NOT NULL,
-    state INT(1) NOT NULL,
-    app_idx INT(4) NOT NULL,
-    call_id VARCHAR(255) NOT NULL,
-    from_tag VARCHAR(128) NOT NULL,
-    to_tag VARCHAR(128) NOT NULL,
-    notify_cseq INT(11) NOT NULL,
-    subscribe_cseq INT(11) NOT NULL,
-
-    CONSTRAINT sca_subscriptions_idx UNIQUE (subscriber, call_id, from_tag, to_tag)
-) ENGINE=MyISAM;