stm32/extint: Remove unused (and incorrect) EXTI defines.
#define EXTI_NUM_VECTORS (PYB_EXTI_NUM_VECTORS)
-#define EXTI_MODE_INTERRUPT (offsetof(EXTI_TypeDef, IMR))
-#define EXTI_MODE_EVENT (offsetof(EXTI_TypeDef, EMR))
-
-#define EXTI_TRIGGER_RISING (offsetof(EXTI_TypeDef, RTSR))
-#define EXTI_TRIGGER_FALLING (offsetof(EXTI_TypeDef, FTSR))
-#define EXTI_TRIGGER_RISING_FALLING (EXTI_TRIGGER_RISING + EXTI_TRIGGER_FALLING) // just different from RISING or FALLING
-
void extint_init0(void);
uint extint_register(mp_obj_t pin_obj, uint32_t mode, uint32_t pull, mp_obj_t callback_obj, bool override_callback_obj);
