Clean up the flag parallel_lookup_release am: 581636ab

Original change: https://android-review.googlesource.com/c/platform/packages/modules/DnsResolver/+/2535479



Change-Id: I79e224ed8763d77454ab8a44989e874f488f9a8e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>