further clean up em and general code

bsp_q7s/em/emObjectFactory.cpp

@@ -35,6 +35,7 @@ void ObjectFactory::produce(void* args) {
 
   gpioCallbacks::disableAllDecoder(gpioComIF);
   PowerSwitchIF* pwrSwitcher = new DummyPowerSwitcher(objects::PCDU_HANDLER, 18, 0);
+  static_cast<void>(pwrSwitcher);
 
   // Regular FM code, does not work for EM if the hardware is not connected
   // createPcduComponents(gpioComIF, &pwrSwitcher);