Removes the uploaded video file of the banner from storage and clears it on the banner. A LOCAL_VIDEO banner has no creative until a new videoFile is uploaded through /banner/{bannerId}/update. Requires UPDATE access to the banner's advertiser.
using var client = new HttpClient();
var request = new HttpRequestMessage(new HttpMethod("DELETE"), "https://YOUR-NETWORK-DOMAIN/rest-api/banner/3001/video.do");
request.Headers.Add("X-Api-Key", "YOUR_API_KEY");
var response = await client.SendAsync(request);
Console.WriteLine(await response.Content.ReadAsStringAsync());