Change palm rejection enabling value

It looks like we cache the remote configuration value in some instances,
so we'll resolve this by changing the value we use to enable/disable it,
and also remove the propagation criteria and use "experiments" and
"launches" instead.

Bug: 239675985
Test: flashed device and confirmed that palm rejection is disabled

Change-Id: I9c764ed3402d9244e6dd5928d3ca8388491f7175