Unpublish the video from your Media Gallery
Go to the Media Gallery, search for the video you would like to delete.
Select the video by clicking on it .
Below the video you will see a button titled ACTIONS.
Click on the drop down arrow next to it and select Publish.
Select private then save.
Go to the Media Gallery, search for the video you would like to delete.
Select the video by clicking on it .
Below the video you will see a button titled ACTIONS.
Click on the drop down arrow next to it and select delete.