LAUNCHXL-CC26X2R1: question of SPI Code in simple peripheral oad on chip example project.

Hi,

I have a question.

I know oad-onchip do not use extern flash.

but, as following, there is about ExternFlash in example project.

#define Board_initGeneral Board_init

int main()
{

  Board_initGeneral();

}

void Board_init(void)
{
  Board_shutDownExtFlash();
}

Why there is about ExternFlash Control Code??????