public void DeleteReleaseDefinition()
{
string projectName = ClientSampleHelpers.FindAnyProject(this.Context).Name;
// Get a release client instance
VssConnection connection = Context.Connection;
ReleaseHttpClient releaseClient = connection.GetClient <ReleaseHttpClient>();
// delete release definition
releaseClient.DeleteReleaseDefinitionAsync(project: projectName, definitionId: newlyCreatedReleaseDefinitionId).SyncResult();
}