[media] drivers: media: radio: radio-keene.c: Remove unneeded include of version.h

The output of "make versioncheck" told us that:

drivers/media/radio/radio-keene.c: 31 linux/version.h not needed.

After take a look in the code, we can agree to remove it.

Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: <linux-media@vger.kernel.org>
Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/radio/radio-keene.c

@@ -28,7 +28,6 @@
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-event.h>
 #include <linux/usb.h>
-#include <linux/version.h>
 #include <linux/mutex.h>
 
 /* driver and module definitions */