remove rest of the parsing in csharp bot

PluralKit.Bot/CommandMeta/CommandParseErrors.cs

@@ -7,28 +7,13 @@ public partial class CommandTree
     private async Task PrintCommandList(Context ctx, string subject, string commands)
     {
         await ctx.Reply(
-            $"Here is a list of commands related to {subject}:",
-            embed: new Embed()
-            {
-                Description = $"{commands}\nFor a full list of possible commands, see <https://pluralkit.me/commands>.",
-                Color = DiscordUtils.Blue,
-            }
+            components: [
+                new MessageComponent()
+                {
+                    Type = ComponentType.Text,
+                    Content = $"Here is a list of commands related to {subject}:\n{commands}\nFor a full list of possible commands, see <https://pluralkit.me/commands>.",
+                }
+            ]
         );
     }
-
-    private async Task<string> CreateSystemNotFoundError(Context ctx)
-    {
-        var input = ctx.PopArgument();
-        if (input.TryParseMention(out var id))
-        {
-            // Try to resolve the user ID to find the associated account,
-            // so we can print their username.
-            var user = await ctx.Rest.GetUser(id);
-            if (user != null)
-                return $"Account **{user.Username}#{user.Discriminator}** does not have a system registered.";
-            return $"Account with ID `{id}` not found.";
-        }
-
-        return $"System with ID {input.AsCode()} not found.";
-    }
 }