SharePoint is by default provisioned with a root Team Site and a Search site collection. Both of these collections use the contentTypeHub (https://TENANT.sharepoint.com/sites/contentTypeHub). These default provision are of little use for tenants who wish to use SharePoint as a document repository only. We had to delete the root site collection and we recreated using no templates. Once created, we start enabling site collection features and site features according to our needs. We do not use the contentTypeHub and we now have ended with a separate site orphaned without any use. If anyone requires a contentTypeHub, they could create a separate site or site collection and enable the Content Type Syndication feature themselves.