[media] pwc: Remove unneeded struct vb2_queue clearing

struct vb2_queue is allocated through kzalloc as part of a larger struct,
there's no need to clear it.

Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/usb/pwc/pwc-if.c

@@ -994,7 +994,6 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id
 	pdev->power_save = my_power_save;
 
 	/* Init videobuf2 queue structure */
-	memset(&pdev->vb_queue, 0, sizeof(pdev->vb_queue));
 	pdev->vb_queue.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 	pdev->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
 	pdev->vb_queue.drv_priv = pdev;