Remove in-app contract lib/aidl

Will move the definitions into framework as SystemAPI

Bug: 65065268
Test: builds
Change-Id: If60584066ce28bbb68a9e9a3ecb5656686cbde4a
6 files changed
tree: a2b1e155a29de83fafcdab05d5ad705ca2188500
  1. src/
  2. Android.mk
  3. AndroidManifest.xml
  4. proguard.cfg