Project associated with Deleted Client

Project associated with Deleted Client

I have 3 projects that were associated with a test client account I was using to explore the functionality of giving clients access to projects.

The Client account I created has been removed (can't search in CRM to find it).  But when I list projects "View by Client" the Missing Client Account appears on the list with the 3 projects listed.  How can I dissasociate these projects from the dleted Client account?