Revert^2 "Preopt APEX system server jars."

This reverts commit 92346c48.

Reason for revert: Fixed build error.

The build error is fixed by ag/15841934. This CL remains unchanged. This
CL will be submitted AFTER ag/15841934 is submitted.

Bug: 200024131
Test: 1. Patch this CL and ag/15841934 into internal master.
  2. sudo vendor/google/build/build_test.bash

Change-Id: I5f2b8357846fc7dda56e25ebe6ffb095e8047ec8