Revert "Update AssetManager_Delegate following commit 1187590"

This reverts commit 2e191793770d02a824b8757d3a53a0acbc305285.
Commit 1187590, on which the CL this reverts was based, has been reverted in
commit bde1df2.

Test: layoutlib tests
Change-Id: I8985e74953ad55c0976a8458c6d63ac5a9c0a152
2 files changed