platform/x86: dell-privacy: Remove usage of wmi_has_guid()

platform/x86: dell-privacy: Remove usage of wmi_has_guid()

The WMI driver core already takes care that the WMI driver is
only bound to WMI devices with a matching GUID.

Remove the unnecessary call to wmi_has_guid(), which will always
be true when the driver probes.

Tested on a Dell Inspiron 3505.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240223162905.12416-1-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>