libril: include what you use

Unused binder header removal.

Test: works with BOARD_VNDK_VERSION := current
Bug: 33241851
(cherry picked from commit 3eab89a5c5f6f6436cac39ef713fbd2474f61cb1)
Merged-In: I26f0bdb63ac98264bb11d5f7c68d68cf427988ec
Change-Id: I26f0bdb63ac98264bb11d5f7c68d68cf427988ec
1 file changed
tree: 3b33ceadafdfb9c0d735db743c86aa427d8bc089
  1. include/
  2. libril/
  3. librilutils/
  4. reference-ril/
  5. rild/
  6. CleanSpec.mk