Merge changes Ia2455b44,Ia5cdc16e

* changes:
  Remove i686-apple-darwin* gcc-4.2.1 bins, libs, and includes
  add OWNERS for prebuilts/gcc/darwin-x86/host/i686-apple-darwin-4.2.1
tree: afcbb319fc0f9bcca4e023ecb568fd0cf13095ea
  1. OWNERS