Remove unnecessary defined('ENVIRONMENT') checks
As suggested in issue #2134 & PR #2149
diff --git a/system/libraries/User_agent.php b/system/libraries/User_agent.php
index 1f4b2fa..3fe2e05 100644
--- a/system/libraries/User_agent.php
+++ b/system/libraries/User_agent.php
@@ -175,7 +175,7 @@
*/
protected function _load_agent_file()
{
- if (defined('ENVIRONMENT') && is_file(APPPATH.'config/'.ENVIRONMENT.'/user_agents.php'))
+ if (is_file(APPPATH.'config/'.ENVIRONMENT.'/user_agents.php'))
{
include(APPPATH.'config/'.ENVIRONMENT.'/user_agents.php');
}