CNV-13214: Adding NOTE to check for storage supporting cloning

Author: Bob Gaydos

modules/virt-creating-a-vm-from-a-template-with-an-attached-boot-source.adoc

@@ -12,7 +12,6 @@ After you add a boot source to a template, you can create a new virtual machine
 . In the {product-title} web console, click *Workloads > Virtualization* in the side menu.
 . From the *Virtual Machines* tab or the *Templates* tab, click *Create* and select *Virtual Machine with Wizard*.
 . In the *Select a template* step, select an OS from the Operating System list that has the *(Source available)* label next to the OS and version name. The *(Source available)* label indicates that a boot source is available for this OS.
-. Ensure that the *Clone available operating system source* checkbox is selected.
 . Click *Review and Confirm*.
 . Review your virtual machine settings and edit them, if required.
 . Click *Create Virtual Machine* to create your virtual machine. The *Successfully created virtual machine* page is displayed.