Hi Montreal,
yes like Steve said you can cut sucker anytime if you dont want to do anything further with it.
Just want to add
Also in past when i just would be lazy and want to root a sucker i get a couple of pieces of thick enough wire and make hook on 1 end and hook it around sucker stem a little bit under potting soil ( hold it down under and still attached to mother tree ) with leaves sticking out, as time goes by it grows roots along the stem part under soil and i get knife and just cut it and gently dig under it with moist soil intact and pot it .
There have been times also when i cut the suckers out to toss away there are small roots on stem near where it attaches to the mother tree.
These fig trees are something else for the most part in things they do.