media: atomisp: Remove unused ATOM_ISP_MAX_WIDTH_TMP and ATOM_ISP_MAX_HEIGHT_TMP

Remove the unused ATOM_ISP_MAX_WIDTH_TMP and ATOM_ISP_MAX_HEIGHT_TMP
defines.

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>