This topic aims to explain how to stop listing on Mercado Livre!
To deactivate listings on ML from VTEX, you can do it in 2 ways:
1- Remove the products from the trade policy used in the integration.
2- Set the stock to zero for the products on ML.
This article explains it clearly:
Why was my listing paused on Mercado Livre?
Also, if you still have any questions about this, feel free to ask here! 
Márcia Alves
Field Software Engineer | VTEX