Remove new Apf RA filter tests in LegacyApfTest am: 8dab1771ab

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/3120151

Change-Id: I4bd78268ba6ea69a55d9c460cff776ca00ce0028
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>