Removing any of that stuff should not affect the idle speed, providing you block off the spouts on the inlet mani and throttle body where they were removed from.
I removed the a/c condensor from mine the other day, its what those 2 pipes going through the bulkhead are connected to. Its behind the glove box in a black section between the fan and the heater matrix sections. 20 minute job, just undo all the plugs, the nuts top and bottom and remove the plastic section. Then take out the screws on it and remove the clips holding the 2 sections together. Then take the condensor out, fuck it in the bin, put it back together and refit it.