test: Remove intermittently failing and not very meaningful BOOST_CHECK in cnetaddr_basic

Author: practicalswift

src/test/net_tests.cpp

@@ -307,9 +307,6 @@ BOOST_AUTO_TEST_CASE(cnetaddr_basic)
     BOOST_REQUIRE(addr.IsValid());
     BOOST_REQUIRE(addr.IsIPv6());
     BOOST_CHECK(!addr.IsBindAny());
-    const std::string addr_str{addr.ToString()};
-    BOOST_CHECK(addr_str == scoped_addr || addr_str == "fe80:0:0:0:0:0:0:1");
-    // The fallback case "fe80:0:0:0:0:0:0:1" is needed for macOS 10.14/10.15 and (probably) later.
     // Test that the delimiter "%" and default zone id of 0 can be omitted for the default scope.
     BOOST_REQUIRE(LookupHost(link_local + "%0", addr, false));
     BOOST_REQUIRE(addr.IsValid());