message: fix(CI): remove CircleCI ssh hack
diff: # Clone the demo repo
  cd "$HOME" || exit
  -# HACK: Avoid hosts unknown for GitHub: https://discuss.circleci.com/t/git-clone-fails-in-circle-2-0/15211
  -mkdir ~/.ssh/ && echo -e "Host github.com\n\tStrictHostKeyChecking no\n" > ~/.ssh/config
  git clone git@github.com:GetTerminus/ui-demos-release.git
  # Enter the demos repo
  