Made RequestOptions in XXXMessage.DeleteAsync optional

src/Discord.Net.Rest/Entities/Messages/RestMessage.cs

@@ -60,7 +60,7 @@ namespace Discord.Rest
             var model = await Discord.ApiClient.GetChannelMessageAsync(Channel.Id, Id, options).ConfigureAwait(false);
             Update(model);
         }
-        public Task DeleteAsync(RequestOptions options)
+        public Task DeleteAsync(RequestOptions options = null)
             => MessageHelper.DeleteAsync(this, Discord, options);
 
         public override string ToString() => Content;

src/Discord.Net.Rpc/Entities/Messages/RpcMessage.cs

@@ -58,7 +58,7 @@ namespace Discord.Rpc
                 AuthorColor = new Color(Convert.ToUInt32(model.AuthorColor.Value.Substring(1), 16));
         }
 
-        public Task DeleteAsync(RequestOptions options)
+        public Task DeleteAsync(RequestOptions options = null)
             => MessageHelper.DeleteAsync(this, Discord, options);
 
         public override string ToString() => Content;

src/Discord.Net.WebSocket/Entities/Messages/SocketMessage.cs

@@ -54,7 +54,7 @@ namespace Discord.WebSocket
                 Content = model.Content.Value;
         }
 
-        public Task DeleteAsync(RequestOptions options)
+        public Task DeleteAsync(RequestOptions options = null)
             => MessageHelper.DeleteAsync(this, Discord, options);
 
         public override string ToString() => Content;