[gnomegr-web] Remove footer-art template and images

[Tom Tryfonidis <tomtryf src gnome org>]

commit 91dbb62008eeddd59928b003b4c5e57443db9a34
Author: Tom Tryfonidis <tomtryf gnome org>
Date:   Wed Apr 5 18:27:34 2017 +0300

    Remove footer-art template and images

 gnomegr/footer_art.php                           |   20 --------------------
 gnomegr/images/footer_arts/404.png               |  Bin 3463 -> 0 bytes
 gnomegr/images/footer_arts/art-2.png             |  Bin 4889 -> 0 bytes
 gnomegr/images/footer_arts/art.png               |  Bin 9186 -> 0 bytes
 gnomegr/images/footer_arts/community.png         |  Bin 12016 -> 0 bytes
 gnomegr/images/footer_arts/default.png           |  Bin 8402 -> 0 bytes
 gnomegr/images/footer_arts/i18n.png              |  Bin 12871 -> 0 bytes
 gnomegr/images/footer_arts/readme.txt            |   19 -------------------
 gnomegr/images/footer_arts/search.png            |  Bin 4260 -> 0 bytes
 gnomegr/images/footer_arts/search_no-results.png |  Bin 3990 -> 0 bytes
 gnomegr/images/footer_arts/support.png           |  Bin 8455 -> 0 bytes
 11 files changed, 0 insertions(+), 39 deletions(-)