Revert "Work around incorrect R8 proguard compatibility"

This reverts commit cf5180c1.

Reason for revert: r8 behaves more like proguard now.

Bug: 80081393
Test: m checkbuild
Test: examine attributes on com.android.stk.BootCompletedReceiver
      in out/target/common/obj/APPS/Stk_intermediates/classes.dex

Change-Id: I6cff1d7cb6b71023399db6492455f69328dd73f3