Removing unnecessary method

Author: ifcodesdotnet

src/ByteDev.Sonos.Upnp/Services/AvTransportService.cs

@@ -168,10 +168,5 @@ public async Task<GetTransportSettingsResponse> GetTransportSettingsAsync()
 
             return new GetTransportSettingsResponseFactory().CreateFor(ActionXNamespace, xml);
         }
-
-        public async Task SetPlayModeAsync()
-        {
-            await _upnpClient.InvokeActionAsync("SetPlayMode");
-        }
     }
 }