Update cask script (Homebrew/homebrew-cask#119509)

publish/cask.js

@@ -82,12 +82,6 @@ get(location).then((data) => {
         '  desc "' + description + '"',
         '  homepage "' + repository + '"',
         '',
-        '  livecheck do',
-        '    url :url',
-        '    strategy :git',
-        '    regex(/^v(\\d+(?:\\.\\d+)+)$/)',
-        '  end',
-        '',
         '  auto_updates true',
         '',
         '  app "' + productName + '.app"',