Revert "DO NOT MERGE: Use prebuilts of the ART Module by default (reland)."

This reverts commit 6a3fd20b.

Reason for revert: DroidMonitor-triggered revert due to breakage https://android-build.googleplex.com/builds/quarterdeck?branch=git_sc-mainline-prod&target=mainline_modules-userdebug&lkgb=7528055&lkbb=7528146&fkbb=7528146, bug b/193013377

Change-Id: I896884acbb1dae20019eefeedf13494c4235a1b3