Test: Clean up some hard-coded flags in resolv_integaration_test am: 6491342a am: 8e1845c8 am: 41a0fc4f am: a463fedd

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



Change-Id: Ie109a1da47a36b06523fbfe2397f193e142c7ddf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>