Removed unused static function

Author: PilnyTomas

libraries/WiFiProv/src/WiFiProv.cpp

@@ -66,15 +66,6 @@ static void get_device_service_name(prov_scheme_t prov_scheme, char *service_nam
 #endif
 }
 
-static esp_err_t custom_prov_data_handler(uint32_t session_id, const uint8_t *inbuf, ssize_t inlen, uint8_t **outbuf, ssize_t *outlen, void *priv_data){
-    if (inbuf) {
-    	log_d("Received data: %.*s", inlen, (char *)inbuf);
-    }
-    *outbuf = NULL;
-    *outlen = 0;
-    return ESP_OK;
-}
-
 void WiFiProvClass :: beginProvision(prov_scheme_t prov_scheme, scheme_handler_t scheme_handler, wifi_prov_security_t security, const char * pop, const char *service_name, const char *service_key, uint8_t * uuid)
 {
     bool provisioned = false;