Fix outdated docs for removed commands
Created by: rudibs
I am happy to put some of these deleted lines back when the .sia format is stabilized and the commands work once again. https://github.com/NebulousLabs/Sia/pull/1978
Created by: rudibs
I am happy to put some of these deleted lines back when the .sia format is stabilized and the commands work once again. https://github.com/NebulousLabs/Sia/pull/1978