Rename extr_unload_() to mmu_unload_filament() and move it to ultralcd.cpp as it is menu.

Firmware/mmu.cpp

@@ -1074,18 +1074,6 @@ void mmu_filament_ramming()
     }
 }
 
-//-//
-void extr_unload_()
-{
-    eFilamentAction = FilamentAction::MmuUnLoad;
-    bFilamentFirstRun = false;
-    if (target_temperature[0] >= EXTRUDE_MINTEMP)
-    {
-        bFilamentPreheatState = true;
-        mFilamentItem(target_temperature[0], target_temperature_bed);
-    }
-    else lcd_generic_preheat_menu();
-}
 
 //! @brief show which filament is currently unloaded
 void extr_unload_view()

Firmware/mmu.h

@@ -105,8 +105,7 @@ extern int get_ext_nr();
 extern void display_loading();
 extern void extr_adj(uint8_t extruder);
 extern void extr_unload();
-//-//
-extern void extr_unload_();
+
 extern void extr_adj_0();
 extern void extr_adj_1();
 extern void extr_adj_2();

Firmware/ultralcd.cpp

@@ -131,6 +131,8 @@ static void lcd_menu_fails_stats_mmu_print();
 static void lcd_menu_fails_stats_mmu_total();
 //static void lcd_menu_show_sensors_state();      // NOT static due to using inside "Marlin_main" module ("manage_inactivity()")
 
+static void mmu_unload_filament();
+
 static void mmu_fil_eject_menu();
 static void mmu_load_to_nozzle_menu();
 #ifdef MMU_HAS_CUTTER
@@ -2373,6 +2375,18 @@ void lcd_unLoadFilament()
      else lcd_generic_preheat_menu();
 }
 
+static void mmu_unload_filament()
+{
+    eFilamentAction = FilamentAction::MmuUnLoad;
+    bFilamentFirstRun = false;
+    if (target_temperature[0] >= EXTRUDE_MINTEMP)
+    {
+        bFilamentPreheatState = true;
+        mFilamentItem(target_temperature[0], target_temperature_bed);
+    }
+    else lcd_generic_preheat_menu();
+}
+
 
 void lcd_wait_interact() {
 
@@ -6543,7 +6557,7 @@ static void lcd_main_menu()
 		MENU_ITEM_SUBMENU_P(_i("Load to nozzle"), mmu_load_to_nozzle_menu);
 //-//          MENU_ITEM_FUNCTION_P(_T(MSG_UNLOAD_FILAMENT), extr_unload);
 //bFilamentFirstRun=true;
-          MENU_ITEM_SUBMENU_P(_T(MSG_UNLOAD_FILAMENT), extr_unload_);
+          MENU_ITEM_SUBMENU_P(_T(MSG_UNLOAD_FILAMENT), mmu_unload_filament);
 		MENU_ITEM_SUBMENU_P(_i("Eject filament"), mmu_fil_eject_menu);
 #ifdef  MMU_HAS_CUTTER
         MENU_ITEM_SUBMENU_P(_i("Cut filament"), mmu_cut_filament_menu);