platform/chrome: chromeos_laptop: Remove duplicate check

fwnode_remove_software_node() is aware of invalid input,
no need to perform checks in the caller.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250630101225.1855431-1-andriy.shevchenko@linux.intel.com


Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>