Remove ndk_platform backend. Use the ndk backend. am: 2be40b6e43

Original change: https://android-review.googlesource.com/c/platform/system/memory/libmemtrack/+/1778913

Change-Id: I4d31a7eef8e1738823df27e5238cab75db2f93b9
tree: 36f819928436e1936beddface02858f0ff2249b3
  1. include/
  2. Android.bp
  3. memtrack.cpp
  4. memtrack_test.cpp
  5. OWNERS