staging: rtl8188eu: remove unused rtw_get_oper_choffset()

The function rtw_get_oper_choffset() is never used, so remove it.
Discovered by cppcheck.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_wlan_util.c

@@ -303,11 +303,6 @@ inline void rtw_set_oper_bw(struct adapter *adapter, u8 bw)
 	adapter->mlmeextpriv.oper_bwmode = bw;
 }
 
-inline u8 rtw_get_oper_choffset(struct adapter *adapter)
-{
-	return adapter->mlmeextpriv.oper_ch_offset;
-}
-
 inline void rtw_set_oper_choffset(struct adapter *adapter, u8 offset)
 {
 	adapter->mlmeextpriv.oper_ch_offset = offset;

drivers/staging/rtl8188eu/include/rtw_mlme_ext.h

@@ -471,7 +471,6 @@ void Set_MSR(struct adapter *padapter, u8 type);
 u8 rtw_get_oper_ch(struct adapter *adapter);
 void rtw_set_oper_ch(struct adapter *adapter, u8 ch);
 void rtw_set_oper_bw(struct adapter *adapter, u8 bw);
-u8 rtw_get_oper_choffset(struct adapter *adapter);
 void rtw_set_oper_choffset(struct adapter *adapter, u8 offset);
 
 void set_channel_bwmode(struct adapter *padapter, unsigned char channel,