1988 90Q additional radiator?

[Radek]

I just discovered that my new old car (1988 90 Quattro, engine code NG) has
an additional small radiator in the front.  It blocks access to the timing
belt cover and I will have to remove it.  It's rotten.  Can I simply throw
it away and plug the hoses?  The A/C does not work.  Would I be running the
risk of overheating here in Canada?
Also, I am thinking of throwing away the A/C compressor since it just takes
up space and adds weight.  Any risks involved?
Thanks for suggestions.