Removing oh-my-zsh as submodule.
Squashed 'oh-my-zsh/' content from commit 3913106

git-subtree-dir: oh-my-zsh
git-subtree-split: 3913106b2e7127d396f27b652df812340ec0c871
Merge commit '84ba397e14e06d02d65e1b8910887c00ff0cca5f' as 'oh-my-zsh'