Turn off a library
Your site comes with nine default libraries. If there’s one that’s not relevant to your organization, you can turn off that library in Administration. The library will no longer be visible in the libraries drop-down.
Click the gear icon on the top right of your screen.
Select General administration in the drop-down.
Click Content defaults under Content in the side menu.
Click the Libraries tab.
Point to a library and click the 3-dot icon.
Select Turn off in the drop-down.
Click Confirm.
Click the pending updates icon to apply the change to published jobs.