Revert "Merge pull request #24 from didip/add-cidfile"

This reverts commit 1134a6793e8eea248414fe7d118574091dc8a27e, reversing
changes made to b11a00261737badf52178496690e398b1a393e96.

Conflicts:
	lib/centurion/deploy.rb
	spec/deploy_spec.rb

Reverts #24 and fixes #38
Merge pull request #39 from newrelic/jdearing/remove_cidfile

Revert adding Cidfile