VMWare's Virtual Disk Manager was all I needed, after stopping the VM:
"C:\Program Files (x86)\VMware\VMware Workstation\vmware-vdiskmanager.exe" -r Orignal.vmdk -t 0 NewSingle.vmdk
I then removed the Orignal.vmdk and it's associated Orignial-s###.vmdk files and renamed NewSingle.vmdk to Original.vmdk. The VM fired up perfectly in the new configuration.
References
Virtual Disk Manager User Guide
Split vs. Monolithic Virtual Disks