Does anyone know how to remove them so they can be polished from the inside?

 

you can't it is a whole headlight assembly.

 

On the Dodge Intrepid/Chrysler Concorde Forum there is a well documented proceedure for taking headlights apart to clean the inside and how to modify for HID lighting, it may take some searching but I think it is a sticky

 

This procedure requires you putting the headlamp units into an oven or heating vessel in order to melt the seals, then you would have to reseal them after cleaning using a silicone adhesive.

 

I had the same question when I got mine. IF your car is still under warrenty, take it in and they will replace them. I did, or they said they have the parts on order. Mine were cloudy on the inside and I looked for a way to remove just the clear lens, but could'nt. My dealer did'nt question the problem, just fixed it.