Removes redirection to mobile/
Removes redirection to mobile/

mobile/ was removed by d98e76d9c2 but the redirection still existed in
index.php, causing the site to be inaccessible on mobile devices.

shakaran/Big-Big-RSS,shakaran/Big-Big-RSS,shakaran/Big-Big-RSS,shakaran/Big-Big-RSS,shakaran/Big-Big-RSS