Support Vim, Tmux, Emacs with Stow

After moving off of Meta, Dotfiles has a greater responsibility to
manage configs. Vim, Tmux, and Emacs are now within Stow's purview.

configs/shared/zsh/.zshrc

@@ -1,14 +0,0 @@
-export META_DIR="${HOME}/urbint/meta"
-export DOTFILES="${HOME}/dotfiles"
-export ZSH="${HOME}/.oh-my-zsh"
-export PATH="${PATH}:${HOME}/.local/bin"
-export NIX_PKGS="${HOME}/programming/nixpkgs/pkgs"
-
-# Put this here temporarily until we have a better place for it.
-export FPP_EDITOR='emacsclient -n'
-
-ZSH_THEME=refined
-plugins=(zsh-autosuggestions git git-extras github)
-
-source "${ZSH}/oh-my-zsh.sh"
-source "${META_DIR}/urbint_101/scripts/setup"