Merge "Change error log to warning for removing multicast vif" into main am: 4589f2baf8

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3522777

Change-Id: I7e9455bf95af8b8c442111d818bd1742ede4a264
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>