forked from Github/qmk_firmware

* tests: use keycode_string feature With a proper keycode to string implementation in qmk there is no need to use the unit tests only implementation anymore. Signed-off-by: Stefan Kerkmann <karlk90@pm.me> * tests: remove keycode_util feature This feature is no longer used as we switched the tests to the keycode string implementation. Signed-off-by: Stefan Kerkmann <karlk90@pm.me>