staging: rtl8723au: core: remove redundant endianness conversion

Source and destination have the same little-endian annotation: this
patch removes incorrect byte-swap on non-LE cpus.

This addresses the following sparse warning:
drivers/staging/rtl8723au/core/rtw_mlme_ext.c:3911:56: warning: incorrect type in argument 1 (different base types)
drivers/staging/rtl8723au/core/rtw_mlme_ext.c:3911:56: expected unsigned short [unsigned] [usertype] val
drivers/staging/rtl8723au/core/rtw_mlme_ext.c:3911:56: got restricted __le16 [usertype] BA_timeout_value

Signed-off-by: David Decotigny <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/rtl8723au/core/rtw_mlme_ext.c

···
 		put_unaligned_le16(BA_para_set,
 				   &mgmt->u.action.u.addba_resp.capab);
 
-		put_unaligned_le16(pmlmeinfo->ADDBA_req.BA_timeout_value,
-				   &mgmt->u.action.u.addba_resp.timeout);
+		mgmt->u.action.u.addba_resp.timeout
+			= pmlmeinfo->ADDBA_req.BA_timeout_value;
 
 		pattrib->pktlen += 8;
 		break;