[kokoro python] Remove test code am: 1550dfa89e am: 3bcc50c6c5

Original change: https://android-review.googlesource.com/c/platform/external/python/cpython3/+/1574226

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I947516f407ed7056f1f9b0fd272728ab72e38bba