Do not manage old Caskroom location

[wendorf]

Description

Homebrew-Cask has changed the default Caskroom location (see caskroom/homebrew-cask#21857). This cookbook should no longer attempt to manage the legacy location (/opt/homebrew-cask/Caskroom).

Check List

• [ ] All tests pass. See https://github.com/chef-cookbooks/community_cookbook_documentation/blob/master/TESTING.MD
  • There are some tests that will likely not pass, as they have not been passing on master.
• [X] New functionality includes testing.
• [X] New functionality has been documented in the README if applicable
• [X] The CLA has been signed. See https://github.com/chef-cookbooks/community_cookbook_documentation/blob/master/CONTRIBUTING.MD

[wendorf]

Addresses #100

In the vein of #70, this PR might be better done as just removing the entire recipe, or having it just be a stub. The three directories it manages are only valuable if your cask installation is using the outdated directories, and today's homebrew auto-taps caskroom/cask whenever brew cask * is run.

This PR tries to do the least-disruptive thing, though that doesn't make it the right approach. Thoughts?

[wendorf]

103 (already merged) addresses this same issue. No need for this.