Remove plg_system_languagecode

install/mysql/data.sql

@@ -73,7 +73,6 @@ INSERT INTO `extensions` (`extension_id`, `name`, `type`, `element`, `folder`, `
 (430, 'plg_system_logout', 'plugin', 'logout', 'system', 0, 1, 1, 1, '', '', '', '', 0, '0000-00-00 00:00:00', 3, 0),
 (432, 'plg_user_joomla', 'plugin', 'joomla', 'user', 0, 1, 1, 0, '', '{"strong_passwords":"1","autoregister":"1"}', '', '', 0, '0000-00-00 00:00:00', 2, 0),
 (433, 'plg_user_profile', 'plugin', 'profile', 'user', 0, 0, 1, 0, '', '{"register-require_address1":"1","register-require_address2":"1","register-require_city":"1","register-require_region":"1","register-require_country":"1","register-require_postal_code":"1","register-require_phone":"1","register-require_website":"1","register-require_favoritebook":"1","register-require_aboutme":"1","register-require_tos":"1","register-require_dob":"1","profile-require_address1":"1","profile-require_address2":"1","profile-require_city":"1","profile-require_region":"1","profile-require_country":"1","profile-require_postal_code":"1","profile-require_phone":"1","profile-require_website":"1","profile-require_favoritebook":"1","profile-require_aboutme":"1","profile-require_tos":"1","profile-require_dob":"1"}', '', '', 0, '0000-00-00 00:00:00', 0, 0),
-(436, 'plg_system_languagecode', 'plugin', 'languagecode', 'system', 0, 0, 1, 0, '', '', '', '', 0, '0000-00-00 00:00:00', 10, 0),
 (449, 'plg_authentication_cookie', 'plugin', 'cookie', 'authentication', 0, 1, 1, 0, '', '', '', '', 0, '0000-00-00 00:00:00', 0, 0),
 (506, 'protostar', 'template', 'protostar', '', 0, 1, 1, 0, '', '{"templateColor":"","logoFile":"","googleFont":"1","googleFontName":"Open+Sans","fluidContainer":"0"}', '', '', 0, '0000-00-00 00:00:00', 0, 0),
 (507, 'isis', 'template', 'isis', '', 1, 1, 1, 0, '', '{"templateColor":"","logoFile":""}', '', '', 0, '0000-00-00 00:00:00', 0, 0),