Global binder includes: removed unused.

These headers don't seem to be used by anything getting headers from the
global include directory (either passed to things from global.go or by
specifying include_dir).

Things that want to use binder headers should explicitly take a
dependency on libbinder or libbinder_headers.

Bug: N/A
Test: checkbuild on aosp_walleye-userdebug
Change-Id: I16f12780532fba85666cdd61d5eb826a9f99e79d