Remove commented out failing check that shouldn't pass.

Author: khuey

test/sys/test_socket.rs

@@ -93,8 +93,6 @@ pub fn test_inetv6_addr_roundtrip_sockaddr_storage_to_addr() {
         let mut storage = MaybeUninit::<sockaddr_storage>::zeroed();
         let storage_ptr = storage.as_mut_ptr().cast::<sockaddr_in6>();
         let (ffi_ptr, ffi_size) = sockaddr.as_ffi_pair();
-        // XXX this does not pass.
-        // assert_eq!(mem::size_of::<sockaddr>(), ffi_size as usize);
         assert_eq!(mem::size_of::<sockaddr_in6>(), ffi_size as usize);
         unsafe {
             storage_ptr.copy_from_nonoverlapping((ffi_ptr as *const sockaddr).cast::<sockaddr_in6>(), 1);