libbinder: no exit time destructors

fmayle@ saved a lot of space in init doing
this, so apply to libbinder as well.

Why:
- libbinder size 901 KB -> 884 KB
- prevent races on process shutdown

Bug: 411725417
Test: N/A

Change-Id: I7b94ed8a7cad9aba8fc0b23280b101f46a24c7ea