what are these things? and can i lose them?

What is this round canister thing attached to the coil. What is it called, what does it do, and do i really need it? It sure is ugly.




Also there is a box that has electrical wires that ran to the stock choke. I have an aftermarket 4 barrel with an electrical choke and have had it hooked to this box thing and it works fine but, it sure is friggen ugly. once again what is it called? what does it do? and do i need it? hooking to eddy 4 barrel electric choke.



Also is there anything else I could get rid of in the engine bay?