Revert "[res] Duplicate AssetManager when changes are needed"

This reverts commit 40c4f8c8a78afb29fd2fa8ab9dd876569cdab123.

Bug: 379317468

Reason for revert: b/379317468
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:9dd30fb6a453d71e6da3c12c00ba74697324ef1b)
Merged-In: Id8c5c7cb7fc884234deae33caaa13236fb2a9a57
Change-Id: Id8c5c7cb7fc884234deae33caaa13236fb2a9a57
3 files changed