Remove non-free kawaii images

These files are non-free and can no longer be distributed with source
releases.

No free replacements are available. I have not attempted to reach out
the authors of images concerned.

- img/10.png: tisenomati,
  http://www.pixiv.net/member_illust.php?mode=big&illust_id=9984708
- img/2.png: https://danbooru.donmai.us/posts/1011708 ->
  http://haruka.saiin.net/~gyroscope/data/img/2011100201.jpg
- img/3.png: Luminous Flux,
  http://www.pixiv.net/member_illust.php?mode=medium&illust_id=33001785
- img/4.png: Unclear origin. http://www.99comic.com/comics/7208o152458/
- img/5.png: Unclear origin. http://www.taringa.net/SonicIdol/mi/qyLSd
- img/6.png: Unclear origin.
- img/7.png: Spanuel,
  http://spanuel.deviantart.com/art/Akiyama-Mio-vector-trace-429724879
- img/8.png: Kimi Ni Todoke 57 manga / Mango Scans
- img/9.png: https://danbooru.donmai.us/posts/459541 /
  http://e-shuushuu.net/image/165818/ -> pixiv/ura-kata, dead origin
  link at
  http://www.pixiv.net/member_illust.php?mode=medium&illust_id=4418425

These files may have to be filtered later from Git history or an orphan
branch created from this commit forward to satisfy copyright.

0 files changed, 0 insertions, 0 deletions