refactor: move Twitch PubSub to use liveupdates (#6638)

Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>

src/providers/NetworkConfigurationProvider.hpp

@@ -1,11 +1,6 @@
 #pragma once
 
-#include "common/QLogging.hpp"
-
 #include <QNetworkProxy>
-#include <websocketpp/error.hpp>
-
-#include <string>
 
 namespace chatterino {
 
@@ -24,36 +19,6 @@ public:
      * Currently a proxy is applied if configured.
      */
     static void applyFromEnv(const Env &env);
-
-    static void applyToWebSocket(const auto &connection)
-    {
-        const auto applicationProxy = QNetworkProxy::applicationProxy();
-        if (applicationProxy.type() != QNetworkProxy::HttpProxy)
-        {
-            return;
-        }
-        std::string url = "http://";
-        url += applicationProxy.hostName().toStdString();
-        url += ":";
-        url += std::to_string(applicationProxy.port());
-        websocketpp::lib::error_code ec;
-        connection->set_proxy(url, ec);
-        if (ec)
-        {
-            qCDebug(chatterinoNetwork)
-                << "Couldn't set websocket proxy:" << ec.value();
-            return;
-        }
-
-        connection->set_proxy_basic_auth(
-            applicationProxy.user().toStdString(),
-            applicationProxy.password().toStdString(), ec);
-        if (ec)
-        {
-            qCDebug(chatterinoNetwork)
-                << "Couldn't set websocket proxy auth:" << ec.value();
-        }
-    }
 };
 
 }  // namespace chatterino