Delete google-cloud-sdk.rb

[vitorgalvao]

Same logic as #29747, #29748, #29749.

[toonetown]

I actually was using it...but I'm fine with its removal if it doesn't match policy.

The application, however, is run and installed ONLY into the actual caskroom directory...so just fully removing /usr/local/Caskroom/google-cloud-sdk will delete everything (I think that's what the "default" uninstall does - according to #6872 ) So I'm not clear on what actually needs to be added as an uninstall stanza.

The discussion at https://groups.google.com/forum/#!topic/google-cloud-sdk/ppP3vTW4aIo explains this - and the modifications to rc files described at that link are not done in the cask (the cask installs with --bash-completion false, --path-update false and --rc-path false.

Also - reading through the source of the install.sh script that gets run, it actually does just install everything into the caskroom staged directory.

However, as I said at the beginning, I'm fine with this cask being removed. I just thought I'd add a bit more information around the uninstallation.

[vitorgalvao]

@toonetown Actually, that means the cask was already fine. Thank you for the information and the research.

Readding in #29832 with a new note.