diff --git a/actioncable/lib/action_cable/connection/base.rb b/actioncable/lib/action_cable/connection/base.rb
index 4c7fcc1434..06f4f5edd3 100644
--- a/actioncable/lib/action_cable/connection/base.rb
+++ b/actioncable/lib/action_cable/connection/base.rb
@@ -57,7 +57,7 @@ module ActionCable
         @worker_pool = server.worker_pool
         @logger = new_tagged_logger
 
-        @websocket      = ActionCable::Connection::WebSocket.new(env, self, event_loop, server.config.client_socket_class)
+        @websocket      = ActionCable::Connection::WebSocket.new(env, self, event_loop)
         @subscriptions  = ActionCable::Connection::Subscriptions.new(self)
         @message_buffer = ActionCable::Connection::MessageBuffer.new(self)
 
diff --git a/actioncable/lib/action_cable/connection/web_socket.rb b/actioncable/lib/action_cable/connection/web_socket.rb
index 52d8daad4b..382141b89f 100644
--- a/actioncable/lib/action_cable/connection/web_socket.rb
+++ b/actioncable/lib/action_cable/connection/web_socket.rb
@@ -4,8 +4,8 @@ module ActionCable
   module Connection
     # Wrap the real socket to minimize the externally-presented API
     class WebSocket
-      def initialize(env, event_target, event_loop, client_socket_class, protocols: ActionCable::INTERNAL[:protocols])
-        @websocket = ::WebSocket::Driver.websocket?(env) ? client_socket_class.new(env, event_target, event_loop, protocols) : nil
+      def initialize(env, event_target, event_loop, protocols: ActionCable::INTERNAL[:protocols])
+        @websocket = ::WebSocket::Driver.websocket?(env) ? ClientSocket.new(env, event_target, event_loop, protocols) : nil
       end
 
       def possible?
diff --git a/actioncable/lib/action_cable/server/base.rb b/actioncable/lib/action_cable/server/base.rb
index dd059a553b..67ada7cc2e 100644
--- a/actioncable/lib/action_cable/server/base.rb
+++ b/actioncable/lib/action_cable/server/base.rb
@@ -49,7 +49,7 @@ module ActionCable
       end
 
       def event_loop
-        @event_loop || @mutex.synchronize { @event_loop ||= config.event_loop_class.new }
+        @event_loop || @mutex.synchronize { @event_loop ||= ActionCable::Connection::StreamEventLoop.new }
       end
 
       # The worker pool is where we run connection callbacks and channel actions. We do as little as possible on the server's main thread.
diff --git a/actioncable/lib/action_cable/server/configuration.rb b/actioncable/lib/action_cable/server/configuration.rb
index e46e5976ec..dc146f07b0 100644
--- a/actioncable/lib/action_cable/server/configuration.rb
+++ b/actioncable/lib/action_cable/server/configuration.rb
@@ -35,14 +35,6 @@ module ActionCable
         adapter = "PostgreSQL" if adapter == "Postgresql"
         "ActionCable::SubscriptionAdapter::#{adapter}".constantize
       end
-
-      def event_loop_class
-        ActionCable::Connection::StreamEventLoop
-      end
-
-      def client_socket_class
-        ActionCable::Connection::ClientSocket
-      end
     end
   end
 end
diff --git a/actioncable/test/stubs/test_server.rb b/actioncable/test/stubs/test_server.rb
index 4386cdcc70..5bf2a151dc 100644
--- a/actioncable/test/stubs/test_server.rb
+++ b/actioncable/test/stubs/test_server.rb
@@ -10,7 +10,6 @@ class TestServer
     @logger = ActiveSupport::TaggedLogging.new ActiveSupport::Logger.new(StringIO.new)
 
     @config = OpenStruct.new(log_tags: [], subscription_adapter: subscription_adapter)
-    @config.client_socket_class = ActionCable::Connection::ClientSocket
 
     @mutex = Monitor.new
   end