rm install atom script now that profile does it

install_atom.sh

@@ -1,10 +0,0 @@
-#!/bin/bash
-set -e
-set -x
-mkdir -p ~/Applications/
-cd ~/Applications/
-curl -sL -o Atom.zip https://atom.io/download/mac
-unzip Atom.zip
-rm Atom.zip
-
-defaults write com.github.atom ApplePressAndHoldEnabled -bool false