✨ More flexible redundant temp sensor (#22085)

Marlin/src/gcode/temp/M105.cpp

@@ -35,11 +35,7 @@ void GcodeSuite::M105() {
 
   #if HAS_TEMP_SENSOR
 
-    thermalManager.print_heater_states(target_extruder
-      #if ENABLED(TEMP_SENSOR_1_AS_REDUNDANT)
-        , parser.boolval('R')
-      #endif
-    );
+    thermalManager.print_heater_states(target_extruder OPTARG(HAS_TEMP_REDUNDANT, parser.boolval('R')));
 
     SERIAL_EOL();