multi_process_float: revert part of c14c4a9e

multi_process_float: revert part of c14c4a9e

Commit c14c4a9e merged the hash_remove() and hash_add() calls in
multi_process_float(), but didn't notice that the hash key (mi->real) was
updated between these calls.  So we now try to remove the *new* address
instead of the *old* address from the hash table.  This leaks memory and
might break stuff when a different client floats to the old address/port of
this client.  Restore that.

Signed-off-by: Steffan Karger <steffan@karger.me>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <1479575566-21198-1-git-send-email-steffan@karger.me>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg13128.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>