Remove comment field from audit table

Signed-off-by: DL6ER <dl6er@dl6er.de>

advanced/Scripts/database_migration/gravity/1_to_2.sql

@@ -2,8 +2,7 @@ CREATE TABLE audit
 (
 	id INTEGER PRIMARY KEY AUTOINCREMENT,
 	domain TEXT UNIQUE NOT NULL,
-	date_added INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int)),
-	comment TEXT
+	date_added INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int))
 );
 
 UPDATE info SET value = 2 WHERE property = 'version';