Revert^2 "Update ExecUtils to support artd use cases."

This reverts commit ff95ad517297384d4a2ea589490019f90d637e17.

Reason for revert: Fix available (aosp/2148047)

Test: Presubmit
Change-Id: I952960949267a7b6e63cd7966a347cb1f3374b85
Merged-In: I375034162cded6fdf09ee4d4cd783a0d3987af49
5 files changed