Disable unused Python 2 variant. am: 3dff7137c6 am: 60283c5ba5 am: 093e39b381 am: 32bfa6b76b am: bc6f4e48e6

Original change: https://android-review.googlesource.com/c/platform/external/python/asn1crypto/+/2221327

Change-Id: I1bfc5c79a37502bb20101169bb2f537901af9361
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>