Personally, I wouldn't bother as it's a fairly big job but it's up to you - a new induction manifold gasket would be required on refitting.
I would just clean the throttle body carefully and the area of the manifold that the throttle body sits on by wiping it with a lint free cloth soaked in carb cleaner.
It is also worth checking the small ventilation hose attached to the front of the camshaft cover, which connects to the air cleaner duct, to ensure this is not clogged with oily residue.