video: fbdev: mb862xx: remove redundant assignment to pointer ptr

The pointer ptr is being assigned a value that is never read. The
pointer is being re-assigned later in a loop. The assignment is
redundant and can be removed.
Signed-off-by: NColin Ian King <colin.i.king@gmail.com>
Reviewed-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NHelge Deller <deller@gmx.de>

drivers/video/fbdev/mb862xx/mb862xxfb_accel.c

@@ -132,7 +132,7 @@ static void mb86290fb_imageblit8(u32 *cmd, u16 step, u16 dx, u16 dy,
 	cmd[2] = (height << 16) | width;
 
 	i = 0;
-	line = ptr = image->data;
+	line = image->data;
 	bytes = image->width;
 
 	while (i < height) {