ruby@2.0: delete
ruby@2.0: delete

https://github.com/Homebrew/homebrew-core/commit/fd1558ce39c3416e7ff9f21a4cdcbf6d08b862ab

rwhogg/homebrew-core,LinuxbrewTestBot/homebrew-core,rwhogg/homebrew-core,Linuxbrew/homebrew-core,maxim-belkin/homebrew-core,Linuxbrew/homebrew-core,LinuxbrewTestBot/homebrew-core,maxim-belkin/homebrew-core