diff --git a/src/mame/drivers/ng_aes.cpp b/src/mame/drivers/ng_aes.cpp
index 690e791c525..7d9c822a893 100644
--- a/src/mame/drivers/ng_aes.cpp
+++ b/src/mame/drivers/ng_aes.cpp
@@ -79,7 +79,6 @@ public:
 	{ }
 
 	DECLARE_READ16_MEMBER(aes_in2_r);
-	DECLARE_WRITE8_MEMBER(io_control_w);
 
 	DECLARE_INPUT_CHANGED_MEMBER(aes_jp1);
 
@@ -109,21 +108,6 @@ READ16_MEMBER(ng_aes_state::aes_in2_r)
 	return ret;
 }
 
-WRITE8_MEMBER(ng_aes_state::io_control_w)
-{
-	switch (offset)
-	{
-		case 0x00:
-			m_ctrl1->write_ctrlsel(data);
-			m_ctrl2->write_ctrlsel(data);
-			break;
-		default:
-			neogeo_state::io_control_w(space, offset, data);
-			break;
-	}
-}
-
-
 /*************************************
  *
  *  Machine initialization
diff --git a/src/mame/includes/neogeo.h b/src/mame/includes/neogeo.h
index dfa2ce286b6..a57731436cc 100644
--- a/src/mame/includes/neogeo.h
+++ b/src/mame/includes/neogeo.h
@@ -92,13 +92,8 @@ public:
 	TIMER_CALLBACK_MEMBER(display_position_vblank_callback);
 	TIMER_CALLBACK_MEMBER(vblank_interrupt_callback);
 
-	DECLARE_DEVICE_IMAGE_LOAD_MEMBER(neo_cartridge);
-
 	// MVS-specific
 	DECLARE_WRITE16_MEMBER(save_ram_w);
-	DECLARE_CUSTOM_INPUT_MEMBER(mahjong_controller_r);
-	DECLARE_CUSTOM_INPUT_MEMBER(multiplexed_controller_r);
-	DECLARE_CUSTOM_INPUT_MEMBER(kizuna4p_controller_r);
 	DECLARE_CUSTOM_INPUT_MEMBER(kizuna4p_start_r);
 	DECLARE_INPUT_CHANGED_MEMBER(select_bios);