Prepare a grill for medium-high, indirect heat (for a charcoal grill, bank coals on one side of grill; for a gas grill, leave one or two burners off). Oil grates. Thread chicken onto 6–8 skewers, folding and piling onto itself to form a compact shape. Season lightly with salt and grill over direct heat, turning every minute or so, until browned and beginning to char in spots, about 4 minutes. Move to cooler side of grill and continue to grill, basting lightly with glaze and turning every 30 seconds or so, until cooked through and coated with glaze, about 5 minutes longer. Serve chicken topped with sesame-citrus sprinkle.