xcode: Remove unused function.
xcode: Remove unused function.

R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/26662010
old8xp/gyp_from_google,old8xp/gyp_from_google,old8xp/gyp_from_google,old8xp/gyp_from_google,old8xp/gyp_from_google