staging:rtl8192u: Remove unused enumerated type ACM_METHOD - Style

Remove the enumerated type ACM_METHOD as it is unused in code. This is
a coding style change and should not impact runtime code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/ieee80211/rtl819x_Qos.h

@@ -112,17 +112,6 @@ typedef union _TSPEC_BODY {
 	} f;	// Field
 } TSPEC_BODY, *PTSPEC_BODY;
 
-//
-// ACM implementation method.
-// Annie, 2005-12-13.
-//
-typedef	enum _ACM_METHOD {
-	eAcmWay0_SwAndHw		= 0,		// By SW and HW.
-	eAcmWay1_HW			= 1,		// By HW.
-	eAcmWay2_SW			= 2,		// By SW.
-} ACM_METHOD, *PACM_METHOD;
-
-
 typedef struct _ACM {
 //	u8		RegEnableACM;
 	u64		UsedTime;