V4L/DVB (7103): make stk_camera_cleanup() static

stk_camera_cleanup() can become static.

Signed-off-by: Adrian Bunk <[e-mail]>
Acked-by: Jaime Velasco Juan <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/video/stk-webcam.c

···
 };
 MODULE_DEVICE_TABLE(usb, stkwebcam_table);
 
-void stk_camera_cleanup(struct kref *kref)
+static void stk_camera_cleanup(struct kref *kref)
 {
 	struct stk_camera *dev = to_stk_camera(kref);