fix(example): Remove wait on Serial after begin

libraries/Zigbee/examples/Zigbee_Color_Dimmable_Light/Zigbee_Color_Dimmable_Light.ino

@@ -66,9 +66,6 @@ void identify(uint16_t time) {
 /********************* Arduino functions **************************/
 void setup() {
   Serial.begin(115200);
-  while (!Serial) {
-    delay(10);
-  }
 
   // Init RMT and leave light OFF
   rgbLedWrite(led, 0, 0, 0);

libraries/Zigbee/examples/Zigbee_Color_Dimmer_Switch/Zigbee_Color_Dimmer_Switch.ino

@@ -47,9 +47,6 @@ ZigbeeColorDimmerSwitch zbSwitch = ZigbeeColorDimmerSwitch(SWITCH_ENDPOINT_NUMBE
 /********************* Arduino functions **************************/
 void setup() {
   Serial.begin(115200);
-  while (!Serial) {
-    delay(10);
-  }
 
   //Init button switch
   pinMode(button, INPUT_PULLUP);

libraries/Zigbee/examples/Zigbee_On_Off_Light/Zigbee_On_Off_Light.ino

@@ -47,9 +47,7 @@ void setLED(bool value) {
 /********************* Arduino functions **************************/
 void setup() {
   Serial.begin(115200);
-  while (!Serial) {
+
-    delay(10);
-  }
   // Init LED and turn it OFF (if LED_PIN == RGB_BUILTIN, the rgbLedWrite() will be used under the hood)
   pinMode(led, OUTPUT);
   digitalWrite(led, LOW);

libraries/Zigbee/examples/Zigbee_On_Off_Switch/Zigbee_On_Off_Switch.ino

@@ -95,9 +95,6 @@ static void enableGpioInterrupt(bool enabled) {
 /********************* Arduino functions **************************/
 void setup() {
   Serial.begin(115200);
-  while (!Serial) {
-    delay(10);
-  }
 
   //Optional: set Zigbee device name and model
   zbSwitch.setManufacturerAndModel("Espressif", "ZigbeeSwitch");

libraries/Zigbee/examples/Zigbee_Scan_Networks/Zigbee_Scan_Networks.ino

@@ -76,9 +76,6 @@ void printScannedNetworks(uint16_t networksFound) {
 
 void setup() {
   Serial.begin(115200);
-  while (!Serial) {
-    delay(10);
-  }
 
   // Initialize Zigbee stack without any EPs just for scanning
   if (!Zigbee.begin(role)) {

libraries/Zigbee/examples/Zigbee_Temp_Hum_Sensor_Sleepy/Zigbee_Temp_Hum_Sensor_Sleepy.ino

@@ -68,9 +68,7 @@ void meausureAndSleep() {
 /********************* Arduino functions **************************/
 void setup() {
   Serial.begin(115200);
-  while (!Serial) {
+
-    delay(10);
-  }
   // Init button switch
   pinMode(button, INPUT_PULLUP);
 

libraries/Zigbee/examples/Zigbee_Temperature_Sensor/Zigbee_Temperature_Sensor.ino

@@ -53,9 +53,7 @@ static void temp_sensor_value_update(void *arg) {
 /********************* Arduino functions **************************/
 void setup() {
   Serial.begin(115200);
-  while (!Serial) {
+
-    delay(10);
-  }
   // Init button switch
   pinMode(button, INPUT_PULLUP);
 

libraries/Zigbee/examples/Zigbee_Thermostat/Zigbee_Thermostat.ino

@@ -60,9 +60,6 @@ void recieveSensorConfig(float min_temp, float max_temp, float tolerance) {
 /********************* Arduino functions **************************/
 void setup() {
   Serial.begin(115200);
-  while (!Serial) {
-    delay(10);
-  }
 
   // Init button switch
   pinMode(button, INPUT_PULLUP);