I popped the retainer clip out of mine and pulled a little slack out of the hard line and left it at that, I still have a slight amount of play when I put it on the lift.
Keep an eye on that- that retainer clip is meant to keep the bounce and vibration of the axle in the rubber line because if it transfers to the line it could break after time. Same idea as the hard brake line that bolts in just behind the caliper- I've seen so many of those broken so people just let it hang and then the line brakes and WATCHOUT no brakes!