Help! Disconnecting Rear Brake Line above Rear

That clip must have been a 70-72 thing. I just replaced that brake line on my 69 GS400.It doesen't have that clip on top of the frame. You could just bypass it. The clip that is near the hose fitting should be plenty to hold the line in place.The line will fit between the body and frame. Its a little tight but it will go.