Merge "Ensure that the NAT64 prefix is removed when its lifetime expires."...
Merge "Ensure that the NAT64 prefix is removed when its lifetime expires." into rvc-dev am: 00b17045 am: 9bbaf64a am: 2cdeca31 am: a7d6f938
Change-Id: Idbc02fa75cd4f2a3871b1aee27f3538ca9cc0551