[kokoro python] Clean up old debug logging am: b3dfbc00d4 am: 30958c7a8e

Original change: https://android-review.googlesource.com/c/platform/external/python/cpython3/+/1576745

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ieb4a135962c7c792d732b63b34838ccd088584d5