stop using rsvg_term()

stop using rsvg_term()

given that rsvg seems to be causing random problems for those using
svg icons in E17, I consider Lennart's advice to stop using
rsvg_term() quite useful.

Yeah... not everybody does excellent reference counted module
init/shutdown... shame on you ;-) (/me looks at fontconfig and couple
of others as well).

References:
 - http://0pointer.de/blog/projects/beware-of-rsvg-term
 - https://bugzilla.gnome.org/show_bug.cgi?id=592100

git-svn-id: svn+ssh://svn.enlightenment.org/var/svn/e/trunk/evas@47403 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33