After installing this plugin and enabling the "Hide Mode", i was unable to log to the dashboard using the chosen slug (login) or with wp-login...
So i worked with the .htaccess after reading the posts here.
But it was not easy to get back in the dashboard even after editing the .htaccess file. Still had redirecting problems. So i worked it out by remembering the solution of a same plugin when i was using Joomla!
So to get back everything like it was before installing this plugin, just follow this few steps :
1- go to the root of your WordPress installation and from there enter to wp-content/plugins/hide-login.
2- you will find there 3 files : hide-login.php, readme.txt and screenshot-1.png JUST CHANGE THE NAME OF hide-login.php for example to hide-logine ;)
3- go back to your WordPress site and enter your dashboard with http://www.yourdomainname.com/wp-login or http://www.yourdomainname.com/wp-admin
4- go to the settings of this plugin and turn it off, also turn of hide Mode.
5- go to plugins page in your dashboard and remove it from there.
No need to play with your .htaccess file, ESPECIALLY IF YOU ARE NOT FAMILIAR WITH IT!
Hope that my post will help others to easily remove this plugin without struggling with the .htaccsses file :)