iwlwifi: remove duplicate iwl_ax201_cfg_qu_hr declaration

This configuration struct is declared twice, remove one of the
declarations.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210612142637.a08c905ec25b.Iff706f9d5b7b666e306549c419d04dcd4d81e5fd@changeid


Signed-off-by: Luca Coelho <luciano.coelho@intel.com>