The .remove_sta_debugfs callback was not doing anything in this driver,
so remove it as it is not needed.
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190612142658.12792-4-gregkh@linuxfoundation.orgSigned-off-by: NJohannes Berg <johannes.berg@intel.com>