media: atomisp: Remove unused libmsrlisthelper

Since commit 3a81c766 ("media: staging: atomisp: Remove IMX sensor
support") the libmsrlisthelper code is no longer used, remove it.

Suggested-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20240916091512.81859-1-hdegoede@redhat.com


Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>