media: soc_camera: Remove the mt9m001 SoC camera sensor driver

There is a V4L2 sub-device sensor driver for the mt9m001.
There is already a non-soc_camera driver. So, remove the SoC camera
one.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>