Fixed arduino i2c fill implementation

src/devices/arduino/bus/i2c.cpp

@@ -51,14 +51,12 @@ namespace sta
     void ArduinoI2C::fill(uint8_t value, size_t count)
     {
         // Initialize a buffer of size count and fill it with the value.
-        uint8_t *buffer = new uint8_t[count];
+        uint8_t buffer[count];
         memset(buffer, value, count);
 
         Wire.beginTransmission((uint8_t)address_);
         Wire.write(buffer, count);
         Wire.endTransmission();
-
-        delete[] buffer; 
     }
 
     ArduinoI2CDevice::ArduinoI2CDevice(I2C * intf, uint8_t address, bool master /* = true */, bool blocking /* = true */)