Revert "Delay start of bootanimation until after the Runtime APEX is mounted."

This reverts commit d8481835.

Reason: the static deps to libnativeloader and libnativebridge no longer
exist

Bug: 123403798
Test: Device boots to the UI
Test: bootanimation is shown from the very beginning

Change-Id: I1a3f214b1d9a19520998c7d1f2d288465a831892