No you don't have to remove anything other than unplug the wiring to the clutch.
But you will need some brute force to take the tension off the tensioning pulley.
Usually the tensioning pulley arm will have a 1/2" square hole punched into it.
If this is the case you use a long breaker bar in the hole to lever the tension pulley.
If not the it is a tight socket on the pulley mouning bolt and a long bar again.
It is not unheard of for me to have to resort to pushing them with my foot, some of those springs are really heavy.