V4L/DVB: remove unused #include <version.h>

The file(s) below do not use LINUX_VERSION_CODE nor KERNEL_VERSION.
  drivers/media/video/pwc/pwc-ctrl.c

This patch removes the said #include <version.h>.
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/pwc/pwc-ctrl.c

@@ -41,7 +41,6 @@
 #include <asm/uaccess.h>
 #endif
 #include <asm/errno.h>
-#include <linux/version.h>
 
 #include "pwc.h"
 #include "pwc-uncompress.h"