Sprint Removal Of Pannier Rails...

Mine came without, so I found & fitted some. To fit the bolts, I had to remove several plastic bungs, which destroyed getting them out. You will need something to fill the holes, either bungs or black bolts. To fit the slider, I had to remove the tail plate, so no doubt same to remove.

Not difficult, but did take time. At least you won't need to re-tap threads!

I found fitting details online, somewhere.
Hope it goes well.