Don't respect rate limits optimistically

DiscordChatExporter.Core/Discord/DiscordClient.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Globalization;
 using System.Linq;
 using System.Net;
 using System.Net.Http;
@@ -43,44 +42,11 @@ public class DiscordClient(string token)
                         tokenKind == TokenKind.Bot ? $"Bot {token}" : token
                     );
 
-                var response = await Http.Client.SendAsync(
+                return await Http.Client.SendAsync(
                     request,
                     HttpCompletionOption.ResponseHeadersRead,
                     innerCancellationToken
                 );
-
-                // If this was the last request available before hitting the rate limit,
-                // wait out the reset time so that future requests can succeed.
-                // This may add an unnecessary delay in case the user doesn't intend to
-                // make any more requests, but implementing a smarter solution would
-                // require properly keeping track of Discord's global/per-route/per-resource
-                // rate limits and that's just way too much effort.
-                // https://discord.com/developers/docs/topics/rate-limits
-                var remainingRequestCount = response
-                    .Headers
-                    .TryGetValue("X-RateLimit-Remaining")
-                    ?.Pipe(s => int.Parse(s, CultureInfo.InvariantCulture));
-
-                var resetAfterDelay = response
-                    .Headers
-                    .TryGetValue("X-RateLimit-Reset-After")
-                    ?.Pipe(s => double.Parse(s, CultureInfo.InvariantCulture))
-                    .Pipe(TimeSpan.FromSeconds);
-
-                if (remainingRequestCount <= 0 && resetAfterDelay is not null)
-                {
-                    var delay =
-                    // Adding a small buffer to the reset time reduces the chance of getting
-                    // rate limited again, because it allows for more requests to be released.
-                    (resetAfterDelay.Value + TimeSpan.FromSeconds(1))
-                    // Sometimes Discord returns an absurdly high value for the reset time, which
-                    // is not actually enforced by the server. So we cap it at a reasonable value.
-                    .Clamp(TimeSpan.Zero, TimeSpan.FromSeconds(60));
-
-                    await Task.Delay(delay, innerCancellationToken);
-                }
-
-                return response;
             },
             cancellationToken
         );