Fix Info Menu with EXTRUDERS==0 (#15230)

Marlin/src/lcd/menu/menu_info.cpp

@@ -105,11 +105,13 @@ void menu_info_thermistors() {
     #endif
   );
   START_SCREEN();
+  #if EXTRUDERS
     #define THERMISTOR_ID TEMP_SENSOR_0
     #include "../thermistornames.h"
     STATIC_ITEM("T0: " THERMISTOR_NAME, false, true);
     STATIC_ITEM(MSG_INFO_MIN_TEMP ": " STRINGIFY(HEATER_0_MINTEMP), false);
     STATIC_ITEM(MSG_INFO_MAX_TEMP ": " STRINGIFY(HEATER_0_MAXTEMP), false);
+  #endif
 
   #if TEMP_SENSOR_1 != 0
     #undef THERMISTOR_ID
@@ -252,8 +254,10 @@ void menu_info() {
   #else
     MENU_ITEM(submenu, MSG_INFO_PRINTER_MENU, menu_info_printer);        // Printer Info >
     MENU_ITEM(submenu, MSG_INFO_BOARD_MENU, menu_info_board);            // Board Info >
+    #if EXTRUDERS
       MENU_ITEM(submenu, MSG_INFO_THERMISTOR_MENU, menu_info_thermistors); // Thermistors >
     #endif
+  #endif
 
   #if ENABLED(PRINTCOUNTER)
     MENU_ITEM(submenu, MSG_INFO_STATS_MENU, menu_info_stats);          // Printer Stats >