You can use the HR Disable Standalone integrator to remove access to an integrator.
Select Create Document from the Web ADI menu.
Select a spreadsheet viewer. Leave the Reporting check box unselected to download data.
Select HR Disable Integrator integrator.
Select the default options for layout and content.
Enter the application short name.
Review the data entered in the review window, and select the Create Document button.
Select the integrator from the list displayed, and change the value in the Disable column to Yes.
Upload your changes.