vmw_balloon: Remove Julien from the maintainers list

Julien will not be a maintainer anymore.

Signed-off-by: Nadav Amit <namit@vmware.com>
Link: https://lore.kernel.org/r/20190702100519.7464-1-namit@vmware.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>