Test: Clean up some hard-coded flags in resolv_integaration_test am: 6491342a am: ed6f3995 am: e1855c3d am: 3b2c8401 am: 973c6a95

Original change: https://android-review.googlesource.com/c/platform/packages/modules/DnsResolver/+/2465150



Change-Id: I842df1f0d833d6d943cf3f2697e1cebb73684c04
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>