Fix W5500 example, reduce PlatformIO warning

Author: EeeeBin

examples/Modules/W5500/Ethernet2.zip

@@ -1,10 +1,10 @@
-/*
-  Web Server
-  Need to install Ethernet2 arduino library
-  If new arduino esp32 or make error, need go to c:\Program Files (x86)\Arduino\hardware\espressif\arduino-esp32\cores\esp32\Server.h 
-  Change virtual void begin(uint16_t port = 0) = 0; to virtual void begin() = 0;
-  Other example can see https://github.com/adafruit/Ethernet2
- */
+/**
+* Web Server
+* Need to install Ethernet2 arduino library
+* Please don`t install it by arduino library manange
+* If install, delete it
+* Ethernet2 file in M5stack lib examples -> modules -> W5500 -> Ethernet2.zip
+*/
 #include <M5Stack.h>
 #include <SPI.h>
 #include <Ethernet2.h>

examples/Modules/W5500/WebServer/WebServer.ino

@@ -245,9 +245,9 @@
       void initMPU9250();
       void calibrateMPU9250(float * gyroBias, float * accelBias);
       void MPU9250SelfTest(float * destination);
-      void writeByte(uint8_t, uint8_t, uint8_t)   __attribute__ ((deprecated));
-      uint8_t readByte(uint8_t, uint8_t)   __attribute__ ((deprecated));
-      void readBytes(uint8_t, uint8_t, uint8_t, uint8_t *)   __attribute__ ((deprecated));
+      void writeByte(uint8_t, uint8_t, uint8_t);
+      uint8_t readByte(uint8_t, uint8_t);
+      void readBytes(uint8_t, uint8_t, uint8_t, uint8_t *);
   };  // class MPU9250
 
 #endif // _MPU9250_H_