[automerger skipped] DscpPolicy: remove v6 default route as it is added by the RA am: e0196ea540 -s ours

am skip reason: Merged-In I1d2bfd52e05c334f9808e60455c346b4dca18cf7 with SHA-1 1bba92f1bc is already in history

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2192826

Change-Id: I2f5da0bbbf8011726b50420348d415cc2e9cf489
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>