Cleanup cfg attributes in tests

Author: Thomasdezeeuw

tests/socket.rs

@@ -1183,10 +1183,10 @@ test!(IPv4 recv_tos, set_recv_tos(true));
 test!(IPv4 broadcast, set_broadcast(true));
 
 test!(IPv6 unicast_hops_v6, set_unicast_hops_v6(20));
-#[cfg(not(any(windows, any(target_os = "dragonfly", target_os = "freebsd"))))]
+#[cfg(not(any(windows, target_os = "dragonfly", target_os = "freebsd")))]
 test!(IPv6 only_v6, set_only_v6(true));
 // IPv6 socket are already IPv6 only on FreeBSD and Windows.
-#[cfg(any(windows, any(target_os = "freebsd")))]
+#[cfg(any(windows, target_os = "freebsd"))]
 test!(IPv6 only_v6, set_only_v6(false));
 
 #[cfg(all(