Remove git submodules
Squashed 'lib/js2-mode/' content from commit 757ae4b

git-subtree-dir: lib/js2-mode
git-subtree-split: 757ae4bcc18549e85b3131664ca3639a759ad162
Merge commit '22a9b53b634fdb7b6e0081d999a34c8cbd0076c4' as 'lib/js2-mode'
Squashed 'lib/scss-mode/' content from commit 94af467

git-subtree-dir: lib/scss-mode
git-subtree-split: 94af467fe690f71343c16b31c1fed0f95943a44e
Merge commit '7aa11eb93003a681652cfcd1a747460e0e13a8bd' as 'lib/scss-mode'