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>

MAINTAINERS

@@ -5926,7 +5926,6 @@ F:	Documentation/ABI/testing/sysfs-platform-dell-wmi-ddv
 F:	drivers/platform/x86/dell/dell-wmi-ddv.c
 
 DELL WMI SYSMAN DRIVER
-M:	Divya Bharathi <divya.bharathi@dell.com>
 M:	Prasanth Ksr <prasanth.ksr@dell.com>
 L:	Dell.Client.Kernel@dell.com
 L:	platform-driver-x86@vger.kernel.org