ART: Remove com.android.dex.Dex from well_known_classes.

Unused after change 6b2dc3156a2140a5bfd9cbbf5d7dad332ab5f5bd.

Test: make build-art-host
Change-Id: Ib2259c4a3ac1ee7320284a2e2fc08bbc39f9a89b
2 files changed