Setup Linux: Remove SSH key generation

Since this repo is now private, we need to already have created an SSH
key and added it to github, so making another is redundant.

setup_linux.sh

@@ -66,14 +66,4 @@ timedatectl set-local-rtc 1 --adjust-system-clock
 # Change default shell
 sudo chsh -s /usr/bin/fish $USER
 
-# SSH setup
-ssh-keygen -t rsa -f $HOME/.ssh/id_rsa -q -P ""
-
-echo "Your SSH public key is:"
-echo ""
-cat ~/.ssh/id_rsa.pub
-echo ""
-read -p "Please add it to GitHub, then press enter to continue."
-
-git clone git@github.com:tim-mccarthy/dotfiles.git $HOME/.dotfiles
 bash ~/.dotfiles/setup_unix_common.sh