Remove a subordinate CA

I am in the process of setting up a PKI for our organisation. I have setup an Offline Root, Offline Policy Subordinate CA and an Enterprise Subordinate Issuing CA. Due to a number of issues I am required to remove the subordinate Issuing CA and reinstall it. Following kb889250, I reach step 5 which runs certutil -key to display the key stores for the local CA. On running this command, no where in the output is the local CA listed. Why is this? Can I skip the step "deletion of the private key" and go ahead and uninstall the CA?

We are using Windows 2008 R2.

Thanks

Devin