Revert "Parcel squashing: harder errors"

This reverts commit c8a03b79.

Reason for revert: Droidmonitor created revert due to b/390501931. Will be verifying through ABTD before submission.
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:78b84700564764f220978dba0ce199da285e0357)
Merged-In: Ib052ad5319607f8283d60cdd334bab38b614fba9
Change-Id: Ib052ad5319607f8283d60cdd334bab38b614fba9