Remove copyright comments and apply suggestions

database/database.sql

@@ -82,7 +82,8 @@ INSERT INTO `ospos_app_config` (`key`, `value`) VALUES
 ('theme', 'flatly'),
 ('statistics', '1'),
 ('language', 'english'),
-('language_code', 'en');
+('language_code', 'en'),
+('filter_datetime_format','');
 
 
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