Revert^2 "Use the latest temperature read as base for headroom calculation"

This reverts commit eda19967c273dd772fedaa33632ee5ced66838a6.

Reason for revert: reland with a version not using JDK21 methods

Bug: 346425206
Change-Id: I4cddc1936ee684091f430c294d6c829d7cfd3ba2
Merged-In: I706933e7f4bbd1b9abd6591255a605d7643ad7ee
2 files changed