[media] m5mols: Remove unneeded control ops assignments

Since all host drivers using this subdev are already using
the control framework these compatibility ops can be removed.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>