Revert "Update D8 and R8 to 2.0.8-dev"

This reverts commit cd8bff2f615948e36b1c3e41ec67ae30bcef8118.

Reason for revert: Breaks vogar and ART testing.

Change-Id: I436e4d73fa92aa535cdbbbc6b5cf6dcf2f0a3dbf
11 files changed