Remove 64-bit binder ABI setting. am: 86f25c1d4b

Original change: https://android-review.googlesource.com/c/device/linaro/dragonboard/+/2559770

Change-Id: I706173770a8351e925e0bec5576ed6ca4f49bb66
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>