examples/testcase/watchdog: remove unnecessary tc
We can't guarantee that -1 is invalid. Because it is a 'int' type so that it could be negative value with MSB 1.
Not to make a limitation of architecture driver, let's remove an ioctl test with -1 command value.
@@ -146,9 +146,6 @@ static void tc_driver_watchdog_ioctl(void)
ret = ioctl(fd, WDIOC_STOP, 0UL);
TC_ASSERT_EQ_CLEANUP("watchdog_ioctl", ret, OK, close(fd));
- ret = ioctl(fd, -1, 0UL);
- TC_ASSERT_EQ_CLEANUP("watchdog_ioctl", ret, OK, close(fd));
-
close(fd);
TC_SUCCESS_RESULT();
