Remove references to modern_python_path_defaults am: b67664bec3

Original change: https://android-review.googlesource.com/c/platform/external/libchrome/+/2257607

Change-Id: If7b943d09c47b43971bc112c706f86b9ad2bbebb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>