Retire LOCAL_NDK_VERSION.

Bug: 6932421
Change-Id: I4007da47dcff1ab582598507c4a5f092c48bb1cd
am b7cb8944: Retire LOCAL_NDK_VERSION.

* commit 'b7cb8944d4dfcdbfa53d25519b6e8d4b04b856f4':
  Retire LOCAL_NDK_VERSION.
Merge tag 'android-4.3_r2.1' into jellybean-mr2.1

Android 4.3 release 2.1