Remove test mapping file for acloud_test am: 5d8863fbfd am: c5b1ab855b

Original change: https://android-review.googlesource.com/c/platform/external/python/dateutil/+/1549538

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Id1e7c511f67c45deb54261b12ea0bae8e11c5a99