staging: rtl8188eu: remove useless variable rtw_AcceptAddbaReq

rtw_AcceptAddbaReq is a static variable, it is set once and never
modified. It is referenced only once, to assign its value to a member
of struct registry_priv with practically the same name.

Get rid of the variable, and move the meaningful part of the comment
near the declaration of the relevant field of struct registry_priv.

Raises a new checkpatch issue, which is fixed in a later commit:
  CHECK: Avoid CamelCase: <bAcceptAddbaReq>
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/include/drv_types.h

@@ -110,7 +110,7 @@ struct registry_priv {
 	u8	wifi_spec;/*  !turbo_mode */
 
 	u8	channel_plan;
-	bool	bAcceptAddbaReq;
+	bool	bAcceptAddbaReq; /* true = accept AP's Add BA req */
 
 	u8	antdiv_cfg;
 	u8	antdiv_type;

drivers/staging/rtl8188eu/os_dep/os_intfs.c

@@ -101,8 +101,6 @@ static int rtw_rf_config = RF_819X_MAX_TYPE;  /* auto */
 static int rtw_low_power;
 static int rtw_wifi_spec;
 static int rtw_channel_plan = RT_CHANNEL_DOMAIN_MAX;
-/* 0:Reject AP's Add BA req, 1:Accept AP's Add BA req. */
-static int rtw_AcceptAddbaReq = true;
 
 static int rtw_antdiv_cfg = 2; /*  0:OFF , 1:ON, 2:decide by Efuse config */
 
@@ -593,7 +591,7 @@ static void loadparam(struct adapter *padapter, struct net_device *pnetdev)
 	registry_par->low_power = (u8)rtw_low_power;
 	registry_par->wifi_spec = (u8)rtw_wifi_spec;
 	registry_par->channel_plan = (u8)rtw_channel_plan;
-	registry_par->bAcceptAddbaReq = (u8)rtw_AcceptAddbaReq;
+	registry_par->bAcceptAddbaReq = true;
 	registry_par->antdiv_cfg = (u8)rtw_antdiv_cfg;
 	registry_par->antdiv_type = (u8)rtw_antdiv_type;
 	registry_par->hwpdn_mode = (u8)rtw_hwpdn_mode;