diff --git a/Source/Core/Core/HW/SI_GCAdapter.cpp b/Source/Core/Core/HW/SI_GCAdapter.cpp
index 0958db0bd2..ca1cb8e3fe 100644
--- a/Source/Core/Core/HW/SI_GCAdapter.cpp
+++ b/Source/Core/Core/HW/SI_GCAdapter.cpp
@@ -164,8 +164,6 @@ void Init()
 					unsigned char payload = 0x13;
 					libusb_interrupt_transfer(s_handle, s_endpoint_out, &payload, sizeof(payload), &tmp, 0);
 
-					RefreshConnectedDevices();
-
 					s_adapter_thread_running.Set(true);
 					s_adapter_thread = std::thread(Read);
 				}
@@ -271,50 +269,6 @@ void Output(int chan, u8 rumble_command)
 	}
 }
 
-SIDevices GetDeviceType(int channel)
-{
-	if (s_handle == nullptr || !SConfig::GetInstance().m_GameCubeAdapter)
-		return SIDEVICE_NONE;
-
-	switch (s_controller_type[channel])
-	{
-	case CONTROLLER_WIRED:
-		return SIDEVICE_GC_CONTROLLER;
-	case CONTROLLER_WIRELESS:
-		return SIDEVICE_GC_CONTROLLER;
-	default:
-		return SIDEVICE_NONE;
-	}
-}
-
-void RefreshConnectedDevices()
-{
-	if (s_handle == nullptr || !SConfig::GetInstance().m_GameCubeAdapter)
-		return;
-
-	int size = 0;
-	u8 refresh_controller_payload[37];
-
-	libusb_interrupt_transfer(s_handle, s_endpoint_in, refresh_controller_payload, sizeof(refresh_controller_payload), &size, 0);
-
-	if (size != sizeof(refresh_controller_payload) || refresh_controller_payload[0] != LIBUSB_DT_HID)
-	{
-		WARN_LOG(SERIALINTERFACE, "error reading payload (size: %d)", size);
-		Shutdown();
-	}
-	else
-	{
-		for (int chan = 0; chan < MAX_SI_CHANNELS; chan++)
-		{
-			u8 type = refresh_controller_payload[1 + (9 * chan)] >> 4;
-			if (type != CONTROLLER_NONE && s_controller_type[chan] == CONTROLLER_NONE)
-				NOTICE_LOG(SERIALINTERFACE, "New device connected to Port %d of Type: %02x", chan + 1, refresh_controller_payload[1 + (9 * chan)]);
-
-			s_controller_type[chan] = type;
-		}
-	}
-}
-
 bool IsDetected()
 {
 	return s_handle != nullptr;
diff --git a/Source/Core/Core/HW/SI_GCAdapter.h b/Source/Core/Core/HW/SI_GCAdapter.h
index b47afdaec2..4e11dd6636 100644
--- a/Source/Core/Core/HW/SI_GCAdapter.h
+++ b/Source/Core/Core/HW/SI_GCAdapter.h
@@ -15,8 +15,6 @@ void Init();
 void Shutdown();
 void Input(int chan, GCPadStatus* pad);
 void Output(int chan, u8 rumble_command);
-SIDevices GetDeviceType(int channel);
-void RefreshConnectedDevices();
 bool IsDetected();
 bool IsDriverDetected();