Revert^2 "Keymint 3.0 & IAR Support added"

This reverts commit acfffa4a88e5f227201f498cc0d68f839bed6d84.

Added cast in AuthSecret

Reason for revert: Fixing b/315231416

Bug: 303346066
Change-Id: Idbf487a639fb5c93a3f341ba65051fee474a1a20
35 files changed