PFW-1425 Move MMU settings under a common if statement

We only need to check if the MMU is enabled once,
no need to do it in every submenu.
This way we save little bit of flash memory.

Change in memory:
Flash: -24 bytes
SRAM: 0 bytes

Firmware/ultralcd.cpp

@@ -4270,10 +4270,7 @@ static void lcd_fsensor_settings_menu() {
 
 static void settingsSpoolJoin()
 {
-    if (MMU2::mmu2.Enabled())
-    {
-        MENU_ITEM_TOGGLE_P(MSG_SPOOL_JOIN, SpoolJoin::spooljoin.isSpoolJoinEnabled() ? _T(MSG_ON) : _T(MSG_OFF), SpoolJoin::spooljoin.toggleSpoolJoin);
-    }
+    MENU_ITEM_TOGGLE_P(MSG_SPOOL_JOIN, SpoolJoin::spooljoin.isSpoolJoinEnabled() ? _T(MSG_ON) : _T(MSG_OFF), SpoolJoin::spooljoin.toggleSpoolJoin);
 }
 
 #define SETTINGS_SPOOLJOIN \
@@ -4286,22 +4283,19 @@ while(0)\
 #ifdef MMU_HAS_CUTTER
 static void settingsCutter()
 {
-    if (MMU2::mmu2.Enabled())
+    if (EEPROM_MMU_CUTTER_ENABLED_enabled == eeprom_read_byte((uint8_t*)EEPROM_MMU_CUTTER_ENABLED))
     {
-        if (EEPROM_MMU_CUTTER_ENABLED_enabled == eeprom_read_byte((uint8_t*)EEPROM_MMU_CUTTER_ENABLED))
-        {
-            MENU_ITEM_TOGGLE_P(_T(MSG_CUTTER), _T(MSG_ON), lcd_cutter_enabled);
-        }
+        MENU_ITEM_TOGGLE_P(_T(MSG_CUTTER), _T(MSG_ON), lcd_cutter_enabled);
+    }
 #ifdef MMU_ALWAYS_CUT
-        else if (EEPROM_MMU_CUTTER_ENABLED_always == eeprom_read_byte((uint8_t*)EEPROM_MMU_CUTTER_ENABLED))
-        {
-            MENU_ITEM_TOGGLE_P(_T(MSG_CUTTER), _T(MSG_ALWAYS), lcd_cutter_enabled);
-        }
+    else if (EEPROM_MMU_CUTTER_ENABLED_always == eeprom_read_byte((uint8_t*)EEPROM_MMU_CUTTER_ENABLED))
+    {
+        MENU_ITEM_TOGGLE_P(_T(MSG_CUTTER), _T(MSG_ALWAYS), lcd_cutter_enabled);
+    }
 #endif
-        else
-        {
-            MENU_ITEM_TOGGLE_P(_T(MSG_CUTTER), _T(MSG_OFF), lcd_cutter_enabled);
-        }
+    else
+    {
+        MENU_ITEM_TOGGLE_P(_T(MSG_CUTTER), _T(MSG_OFF), lcd_cutter_enabled);
     }
 }
 
@@ -4419,6 +4413,7 @@ do\
 while (0)
 */
 
+// TODO: Rename 'Load to extruder' to 'Loading test'
 #define SETTINGS_MMU_LOAD_TEST \
 do\
 {\
@@ -4755,15 +4750,15 @@ static void lcd_settings_menu()
     MENU_ITEM_SUBMENU_P(_T(MSG_FSENSOR), lcd_fsensor_settings_menu);
 #endif //FILAMENT_SENSOR
 
-	SETTINGS_SPOOLJOIN;
-
-	SETTINGS_CUTTER;
-
     MENU_ITEM_TOGGLE_P(PSTR("MMU"), eeprom_read_byte((uint8_t *)EEPROM_MMU_ENABLED) ? _T(MSG_ON) : _T(MSG_OFF), mmu_enable_switch);
 
     if (eeprom_read_byte((uint8_t *)EEPROM_MMU_ENABLED))
     {
+        SETTINGS_SPOOLJOIN;
+        SETTINGS_CUTTER;
         MENU_ITEM_FUNCTION_P(PSTR("Reset MMU"), mmu_reset);
+        SETTINGS_MMU_MODE;
+        SETTINGS_MMU_LOAD_TEST;
     }
 
 	MENU_ITEM_TOGGLE_P(_T(MSG_FANS_CHECK), fans_check_enabled ? _T(MSG_ON) : _T(MSG_OFF), lcd_set_fan_check);
@@ -4775,10 +4770,6 @@ static void lcd_settings_menu()
         bSettings=true;                              // flag ('fake parameter') for 'lcd_hw_setup_menu()' function
         MENU_ITEM_SUBMENU_P(_T(MSG_HW_SETUP), lcd_hw_setup_menu);
     }
-    
-	SETTINGS_MMU_MODE;
-
-	SETTINGS_MMU_LOAD_TEST;
 
 	MENU_ITEM_SUBMENU_P(_T(MSG_MESH_BED_LEVELING), lcd_mesh_bed_leveling_settings);