To remove the jockey wheel means firstly unwinding th wheel part fully and then extracting the handle part from the clamp. Not necessarily a 2 minute job. Longer still to put it back together. There is no legal reason to have a jockey wheel, in fcat in the good old days many caravans had just a bracket sticking down. However, it does make life so much easier to move the van.
As suggested try to move the bikes to another location. If you ahev a longer A Frame fix the bikes there. Alternatively, if your van will support it, you can attach a bike rack to the rear of the van. However, I would Stress this is usually applicable to continental vans, not UK ones.