migration/multifd: Remove MultiFDPages_t::packet_num

This was introduced by commit 34c55a94b1 ("migration: Create multipage
support") and never used.

Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240104142144.9680-2-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>
2 files changed