[gtk3] Drop unused files

[Matthias Clasen]

commit 0236c58c136f663cbe021ecc748e0b2359b0afed
Author: Matthias Clasen <mclasen at redhat.com>
Date:   Mon Nov 11 12:23:45 2013 -0500

    Drop unused files

 update-gdk-pixbuf-loaders-3.0 |   48 -----------------------------------------
 update-gtk-immodules-3.0      |   48 -----------------------------------------
 2 files changed, 0 insertions(+), 96 deletions(-)