Remove references to different python versions am: 5f348a40d3

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/3467869

Change-Id: Ib7a21c2298cafabe86eca48cf73ece3a8a585c76
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>