am 4f99e3c2: Remove native binaries when an updated system application is upgraded through OTA.

Merge commit '4f99e3c28449833b10ee23c538246847fdb6a498' into froyo-plus-aosp

* commit '4f99e3c28449833b10ee23c538246847fdb6a498':
  Remove native binaries when an updated system application is upgraded through OTA.