[media] atmel-isi: remove mck backward compatibility code
[media] atmel-isi: remove mck backward compatibility code

The master clock should be handled by sensor itself.

Signed-off-by: Josh Wu <5d315a13f7549d1ecf8e62305448b567ef831df9@atmel.com>
Acked-by: Laurent Pinchart <3ded2f39a78f0d7044839546f95841842b4d7c96@ideasonboard.com>
Signed-off-by: Guennadi Liakhovetski <50875182aae23d69ca7738697596f18a14e926fc@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <ad86ba2154032c9f55743a190faa2459a9d61d42@osg.samsung.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs