Remove the failed git submodule for open-dyslexic
Squashed 'static/typefaces/open-dyslexic/' content from commit 5de122a

git-subtree-dir: static/typefaces/open-dyslexic
git-subtree-split: 5de122a7880860b9344de6a5096ef0c42e13bdfc
Merge commit '4f7d0d9151445e4d2271090cd776aa0b0eb4d68e' as 'static/typefaces/open-dyslexic'