Disable unused Python 2 variant. am: d1e64a3f90 am: 314d95bc6a

Original change: https://android-review.googlesource.com/c/platform/external/python/markupsafe/+/2221451

Change-Id: I923c3dd95a687eeef575b08abba7e931fff2b88f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>