perf: delete invalid code

bsp/n32g452xx/Libraries/rt_drivers/drv_common.c

@@ -25,7 +25,6 @@ static void reboot(uint8_t argc, char **argv)
 {
     rt_hw_cpu_reset();
 }
-FINSH_FUNCTION_EXPORT_ALIAS(reboot, __cmd_reboot, Reboot System);
 MSH_CMD_EXPORT(reboot, Reboot System);
 #endif /* RT_USING_FINSH */