Fix most compiler warnings

Controllers/PolychromeController/PolychromeController.cpp

@@ -93,7 +93,7 @@ void PolychromeController::SetAllColors(unsigned char red, unsigned char green,
     }
 }
 
-void PolychromeController::SetLEDColor(unsigned int led, unsigned char red, unsigned char green, unsigned char blue)
+void PolychromeController::SetLEDColor(unsigned int /*led*/, unsigned char red, unsigned char green, unsigned char blue)
 {
     if (asr_led)
     {
@@ -117,4 +117,4 @@ void PolychromeController::SetMode(unsigned char mode)
     {
         bus->i2c_smbus_write_byte_data(dev, POLYCHROME_REG_MODE, mode);
     }    
-}
+}