I received some steel braided brake lines for my 90 Miata. I went to install on the rear calipers and found the original had a small tube coming off the banjo fitting running into the caliper. I don't know if it is press fit and comes out or what. Anyway, the new lines I got do not have that small tube. Does anyone know what it does and if there is a way I can use these new lines that don't have that tube?