You can delete a user-defined subclient a SharePoint Server Agent database server. You cannot delete the default subclient.
From the navigation pane, click Protect > Applications > SharePoint.
The SharePoint page appears.
Click a SharePoint Server.
The SharePoint Server page appears.
In the row for the subclient that you want to delete, click the action button , and then click Manage > Remove from content.
A confirmation dialog box appears.
In the Delete subclient dialog box, type DELETE, and then click Delete.