zephyrCommon: Removed pulseIn GPIO direction check

Since the general Arduino implementation does not check the GPIO
direction, this check has been removed to improve compatibility.

Author: soburi

cores/arduino/zephyrCommon.cpp

@@ -407,8 +407,6 @@ long random(long max) {
 
 #endif
 
-#ifdef CONFIG_GPIO_GET_DIRECTION
-
 unsigned long pulseIn(pin_size_t pinNumber, uint8_t state, unsigned long timeout) {
   struct k_timer timer;
   int64_t start, end, delta = 0;
@@ -421,10 +419,6 @@ unsigned long pulseIn(pin_size_t pinNumber, uint8_t state, unsigned long timeout
     goto cleanup;
   }
 
-  if (!gpio_pin_is_input_dt(spec)) {
-    goto cleanup;
-  }
-
   while(gpio_pin_get_dt(spec) == state && k_timer_status_get(&timer) == 0);
   if (k_timer_status_get(&timer) > 0) {
     goto cleanup;
@@ -449,8 +443,6 @@ unsigned long pulseIn(pin_size_t pinNumber, uint8_t state, unsigned long timeout
   return (unsigned long)delta;
 }
 
-#endif // CONFIG_GPIO_GET_DIRECTION
-
 void enableInterrupt(pin_size_t pinNumber) {
   struct gpio_port_callback *pcb = find_gpio_port_callback(arduino_pins[pinNumber].port);