devopsagile3,
Looking at the screenshot you attached, I think you are using an On-Premises version of Agile Central. If that is the case the toggle is in the 'Labs' tab of your User Settings. You can click on your avatar in the upper right corner and select 'My Settings' then click on the 'Labs' tab. There should be a QDP toggle there to turn off.
Let us know if that helps.
Michael