Removing debug info. Still not working

ampel-firmware/ampel-firmware.ino

@@ -170,10 +170,7 @@ void setup()
 void loop() 
 {
   iotWebConf.doLoop();
-  Serial.print("<");
   shell::checkSerialInput();
-  Serial.print(">");
-  delay(50);
 }
 
 /**
@@ -350,7 +347,6 @@ namespace shell {
 
   void checkSerialInput() {
     while (Serial.available() > 0) {
-      Serial.print("?");
       shell::processSerialInput(Serial.read());
     }
   }