Remove site collection app catalog from the specified site.

• command: spo site appcatalog remove -s|--siteUrl <siteUrl> --confirm
• siteUrl: absolute URL of the site where the site collection app catalog should be removed
• confirm: suppress prompting for confirmation
• requires connection to a SharePoint site

For more information see the Remove-SPOSiteCollectionAppCatalog cmdlet in the November release of the SPO PowerShell.