You can save more than just the weight of the chainring you remove if you’re bieng a proper weight weenie:
1) You can shorten the chain by a few links as you’re running a smaller biggest ring (12 links if you go straight from 44T to a 32T), typically 8links if you go from 44T to a 36T
2) You can run a medium or short cage rear mech, rather than a long cage (admittedly a very small saving)
3) you can run smaller single ring middle ring bolts (again, a very small saving)
4) A proper dual ring front mech is lighter as the cage is smaller to accommodate a smaller difference in chainring sizes between small and large (once again a very small saving)
Whilst these are small changes individually, the sum of all 4 will be a reasonable weight saving if you’re a proper weight weenie, however I am sure many people here will consider it a waste of effort. My opinion: sum lots of these little weight savings together where how you use your bike isn’t affected and you’ll end up with a significantly lighter bike that will make your riding, under almost all conditions, less hard work. But that’s just my opinion.