bpf is required - remove mUseBpfTrafficStats field

Test: git grep mUseBpfTrafficStats
  TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I0be3b802e2ebd175b2a58061bf821aba02a8ec8a
1 file changed
tree: c973b1b7aabb4cc050feaa69ca2d0472c30ce1b4
  1. core/
  2. services/