Hi Ash, welcome to the forum
You'd be far better posting this in the MK7 specific section
http://www.golfgtiforum.co.uk/index.php?board=117.0 assuming yours is a MK7 where there'll be more footfall. There has been plenty of threads on this topic in the past so it may also be worth a search first. Mine is a manual and I've been interested in a remap in the past but clutch slip seems to be a common issue. I think the remaps take the torque too high for a standard clutch hence the slipage. Some seem to get away with it but since you are having the problem then clearly the choice is as you say, change the clutch or remove the remap.
I could also make another suggestion, have you tried a pedalbox? No extra power but it really sharpens up the throttle response to the point where you may find you don't need the remap. There's plenty of threads on them should you be interested -http://www.golfgtiforum.co.uk/index.php?topic=278239.0
I use a pedalbox on mine and wouldn't be without it now! Opinions do vary so have a read through that thread and make your own mind up.
It might be worth your time adding the details of your car to your signature strip so people know exactly what you have and can tailor their responses. Enjoy