Fix for emacs shortcuts

From tmux docs:

"The default is emacs, unless the VISUAL or EDITOR environment variables are set
and contain the string `vi'."

For some reason,

set -g status-keys emacs

does not seem to override.  For now, let's get our emacs keybinds back by
clearing EDITOR.

zshrc

@@ -27,9 +27,6 @@ fi
 zle -N insert-sudo
 bindkey "^z" insert-sudo
 
-# default editor is vim
-export EDITOR='vim'
-
 # init rbenv
 if test -d "$HOME/.rbenv"; then
   eval "$(rbenv init -)"
@@ -40,10 +37,6 @@ if test -d "$NVM_DIR"; then
   source "$NVM_DIR/nvm.sh"
 fi
 
-# temporary fix for tmux
-bindkey "^a" beginning-of-line
-bindkey "^e" end-of-line
-
 # completion
 autoload -U compinit
 compinit