Remove `font.css` from cross-domain web fonts
Remove `font.css` from cross-domain web fonts

`font.css` was a proposed convention for web fonts definitions datauri'd
in css by @paulirish, that never caught up.

Ref: https://github.com/h5bp/server-configs-nginx/pull/6#issuecomment-25720010

johnnyicarus/server-configs-apache,walterebert/server-configs-apache,StephanieMak/server-configs-apache,Gillespie59/server-configs-apache,blackmoral/server-configs-apache,blackmoral/server-configs-apache,johnnyicarus/server-configs-apache,sengkoil/server-configs-apache,voku/server-configs-apache,atyenoria/server-configs-apache,walterebert/server-configs-apache,sengkoil/server-configs-apache,StephanieMak/server-configs-apache,Gillespie59/server-configs-apache,h5bp/server-configs-apache,voku/server-configs-apache,atyenoria/server-configs-apache