Update pins_arduino.h

Author: Godeffroy

variants/waveshare_esp32_s3_tiny/pins_arduino.h

@@ -36,8 +36,6 @@ static const uint8_t SCK = 33;   // FSPICLK
 //static const uint8_t SPIWP = 31;
 //static const uint8_t SPIHD = 30;
 
-static const uint8_t GPIO4 = 4;
-
 // Mapping based on the ESP32S3 data sheet - alternate for OUTPUT
 static const uint8_t GPIO1 = 1;
 static const uint8_t GPIO2 = 2;