Test: Clean up some hard-coded flags in resolv_integaration_test am: 6491342a am: 8e1845c8

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



Change-Id: I03f5fbdf94b08630a7def927b7cdfba5e3875315
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>