This is wrong forum for asking question....correct forum would be this one :
https://gfy.com/forumdisplay.php?f=27
Download WP directly and install clean within your subdomain then you should have subdomain.url.com and not subdomain.url.com/wp/. Your hosting provider's auto install creating "wp" sub-directory.
if you want to modify current installation, you can do that as well but you have to move all the files from "wp" directory to subdomain's root and change that wordpress URL in two places by going to your phpmyadmin.