Using Application Deployment Types to remove a Package

Hi,

I'm trying to move our software which is installed over a number of PC's from Packages to Applications.

I know I can create a TS to remove the package and then install the software as an Application.  But I'm wondering if I can remove the Package that's out there using the Deployment Type in the Application to remove it and then install the software application.

I've tried googling my question but not getting the answer I need.

Thanks