Remove backward compatibility flag am: d1bedc4e64 am: 0d8879b0f2

Original change: https://android-review.googlesource.com/c/platform/frameworks/libs/net/+/1413548

Change-Id: I5f2f73edcb11c5e3a77e5489eacef5cf69ada97d
tree: f1f747598294232662c15b750033b8515633f271
  1. staticlibs/