Modified coding style of mbed.

- deleted dead code
- deleted test code

targets/TARGET_WIZNET/TARGET_W7500x/analogin_api.c

@@ -42,8 +42,6 @@
 
 ADC_TypeDef * AdcHandle;
 
-static int adc_inited = 0;
-
 void analogin_init(analogin_t *obj, PinName pin)
 {
     // Get the peripheral name from the pin and assign it to the object
@@ -57,12 +55,8 @@ void analogin_init(analogin_t *obj, PinName pin)
     // Save pin number for the read function
     obj->pin = pin;
 
-    // The ADC initialization is done once
-    //if (adc_inited == 0) {
-        adc_inited = 1;
-
+    // The ADC initialization
     ADC_Init();
-    //}
 }
 
 static inline uint16_t adc_read(analogin_t *obj)

targets/TARGET_WIZNET/TARGET_W7500x/gpio_irq_api.c

@@ -43,7 +43,6 @@ static gpio_irq_handler irq_handler;
 
 static uint32_t channel_ids[4][16];
 
-uint32_t test_tmp = 0;
 
 #ifdef __cplusplus
 extern "C"{
@@ -54,25 +53,21 @@ void PORT0_Handler(void)
 {
     NVIC_ClearPendingIRQ(PORT0_IRQn);
     port_generic_handler(GPIOA, 0);
-    test_tmp++;
 }
 
 void PORT1_Handler(void)
 {
     port_generic_handler(GPIOB, 1);
-    test_tmp++;
 }
 
 void PORT2_Handler(void)
 {
     port_generic_handler(GPIOC, 2);
-    test_tmp++;
 }
 
 void PORT3_Handler(void)
 {
     port_generic_handler(GPIOD, 3);
-    test_tmp++;
 }
 
 void port_generic_handler(GPIO_TypeDef* GPIOx, uint32_t port_num)
@@ -119,7 +114,6 @@ int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32
     else
         obj->irq_n = PORT3_IRQn;
     
-    obj->event = EDGE_NONE;
     obj->pin = pin;
     
     // Enable EXTI interrupt