Revert "Use ART module public API stubs not implementation classes"

This reverts commit d2879e5ee5705a4ce4d49bf3641abd5b19a737d2.

Reason for revert: Looks like it caused the failing of all sdk targets on aosp-master

Change-Id: Idf7b3d3ef0c64c81460e0b51bf1948bc9feda14e
1 file changed