Move from Azure AD Connect to just Azure cloud AD

Our organization has an on-premise domain controller that sends new users to Azure AD periodically that in turn creates users in our Office 365 arena. I’d like to do away with the on-premise active directory and create users directly into Azure AD.

When I look this up, I see information about removing the computers from the local domain and adding them back to the cloud domain. I don’t really care about the computers; I just want to manage my users. Is there a way to do this without touching every computer?