yaa man that could be done in order to remove it you need to edit the plugin.
plugin --editor--select blue admin and then go to inc/inc.php
then find the function function lj_admin_footer() it will be something around line number 159 just modify the things u will get it done.
another way is via a plugin but that will add extra complexity so i think this could be the best way
regards
kaushal
(happy to help)