Test: Clean up some hard-coded flags in resolv_integaration_test am: 6491342a am: 8e1845c8 am: 19db0caa am: d571df32 am: b18ee48a am: a7dfef3e

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



Change-Id: I2c10b67f2fd018e48d4bcaa6443b652a7987682d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>