MAINTAINERS: dell-wmi-sysman: drop Divya Bharathi

According to the bounce sent by Dell's mailserver this user does not
exist (anymore).

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20230207-maintainers-dell-wmi-sysman-v1-1-6594fea12f6c@weissschuh.net


Signed-off-by: Hans de Goede <hdegoede@redhat.com>