Clean up the flag parallel_lookup_release am: 581636ab am: 6a06ac37 am: 668d7f30

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



Change-Id: Ie781522703e19760a55ce530a07de4993748d8fd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>