Unused variable (#14301)

Marlin/src/module/planner.cpp

         analogWrite(FAN2_PIN, CALC_FAN_SPEED(2));
       #endif
     #endif
-
+  #else
+    UNUSED(tail_fan_speed);
   #endif // FAN_COUNT > 0
 
   #if ENABLED(AUTOTEMP)

Marlin/src/module/temperature.cpp

     }
     else
       disable_all_heaters(); // paranoia
+  #else
+    UNUSED(killed);
   #endif
 }