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

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



Change-Id: I673bf4cca5bb169a1d51775eb0c93ab1b7f27ce4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>