Remove double instantiation

Author: sebromero

Diff for: examples/Battery/Battery.ino

@@ -38,7 +38,6 @@ void setup() {
    while (!Serial);
    delay(1000); // Delay to give time to load the Serial Monitor
 
-   charger = Charger();
    charger.begin();
    auto chargeVoltage = charger.getChargeVoltage();
    auto endOfChargeCurrent = charger.getEndOfChargeCurrent();

Diff for: examples/Charger/Charger.ino

@@ -39,7 +39,6 @@ void setup() {
     for (auto start = millis(); !Serial && millis() - start < 5000;);
     delay(1000); // Delay to give time to load the Serial Monitor
 
-    charger = Charger();
     if(!charger.begin()){
         Serial.println("Charger initialization failed.");
         while (true);