How to remove Sync Photos from my Clound account

Hello, 

Seems to be no simple way to do that that is natural, so I have to ask. 

I did a photo shoot, then imported the photos into LightRoom (not the classic). Ligthroom synced my files with the cloud account, totally draining my cloud storage. 😕😕 

When I go to look in the cloud files, I do not see where these files are nor how to remove them. 

- Do I need to remove them from Lightroom?

- Can I just not sync that folder?