stm32/boards/ARDUINO_PORTENTA_H7: Free reserved timer.

This pin is used for the camera clock on Portenta carrier, and vision shield but it doesn't need to be reserved. Signed-off-by: iabdalkader <i.abdalkader@gmail.com>

Author: iabdalkader

ports/stm32/boards/ARDUINO_PORTENTA_H7/mpconfigboard.h

@@ -30,7 +30,6 @@ typedef unsigned int mp_uint_t; // must be pointer size
 #define MICROPY_HW_ENABLE_SDCARD (1)
 #define MICROPY_HW_ENABLE_MMCARD (0)
 #define MICROPY_HW_ENTER_BOOTLOADER_VIA_RESET (0)
-#define MICROPY_HW_TIM_IS_RESERVED(id) (id == 1)
 
 // ROMFS config
 #define MICROPY_HW_ROMFS_ENABLE_EXTERNAL_QSPI (1)