ad7c294c47
This test is conitnuely fail in cuttlefish.
Lack of ipv6 default route in cuttlefish caused the test failed.
The reason is that the result of rfc6724Sort depends on on the route in system.
It is not good to expect any route should exists, so remove it.
Bug: 133649648
Test: atest DnsUtilsTest
Merged-In: Idc6db433585de067e45088b43665c8e37b310397
(cherry picked from commit 91b35f8842)
Change-Id: Idb6f4c094d3466772e3bfc98a57505bf38f381ef