remove 32-bit binder req

Now that this value is no longer being read by
libbinder, I'm doing the following to remove
it from the build:
1. this CL (remove requirement)
2. removing the config from all devices
3. removing config from the build + kati obsolete

Bug: 232423610
Test: build, boot
Change-Id: I77fcd14c273b43bd10430a55e91e1d5accc9efd0