You can adjust the amount of grain by using some of the Grain options in the toolkit. If you don't like grain at all, you can use "Grain - None" preset and that will remove any grain. Grain can also be manually adjusted in the effects panel of Lightroom and ACR.To manually adjust the grain, locate the Grain tool in Lightroom, go to the Develop Mode of Lightroom. It will be under Effects in the right hand panel.
To remove the grain you can either manually adjust your grain or use the VSCO Film Toolkit called "Grain: None".