media: bdisp: remove redundant assignment to pix

Pointer pix is being initialized to a value and a little later
being assigned the same value again. Remove the initial assignment to
avoid a duplicate assignment. Cleans up the clang warning:

drivers/media/platform/sti/bdisp/bdisp-v4l2.c:726:26: warning: Value
stored to 'pix' during its initialization is never read
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/sti/bdisp/bdisp-v4l2.c

@@ -723,7 +723,7 @@ static int bdisp_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
 static int bdisp_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
 {
 	struct bdisp_ctx *ctx = fh_to_ctx(fh);
-	struct v4l2_pix_format *pix = &f->fmt.pix;
+	struct v4l2_pix_format *pix;
 	struct bdisp_frame *frame  = ctx_get_frame(ctx, f->type);
 
 	if (IS_ERR(frame)) {