staging:rtl8712: remove unused enum WIFI_STATUS_CODE

Improve readability.
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Link: https://lore.kernel.org/r/20210131080912.25264-1-insafonov@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/wifi.h

@@ -101,20 +101,6 @@ enum WIFI_REASON_CODE	{
 	_RSON_PMK_NOT_AVAILABLE_	= 24,
 };
 
-enum WIFI_STATUS_CODE {
-	_STATS_SUCCESSFUL_		= 0,
-	_STATS_FAILURE_			= 1,
-	_STATS_CAP_FAIL_		= 10,
-	_STATS_NO_ASOC_			= 11,
-	_STATS_OTHER_			= 12,
-	_STATS_NO_SUPP_ALG_		= 13,
-	_STATS_OUT_OF_AUTH_SEQ_		= 14,
-	_STATS_CHALLENGE_FAIL_		= 15,
-	_STATS_AUTH_TIMEOUT_		= 16,
-	_STATS_UNABLE_HANDLE_STA_	= 17,
-	_STATS_RATE_FAIL_		= 18,
-};
-
 enum WIFI_REG_DOMAIN {
 	DOMAIN_FCC	= 1,
 	DOMAIN_IC	= 2,