staging: r8188eu: make OnDeAuth static

OnDeAuth is used only in rtw_mlme_ext.c. Make this function static.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Link: https://lore.kernel.org/r/20221024081417.66441-10-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_mlme_ext.c

@@ -1396,7 +1396,7 @@ static unsigned int OnAssocRsp(struct adapter *padapter, struct recv_frame *prec
 	return _SUCCESS;
 }
 
-unsigned int OnDeAuth(struct adapter *padapter, struct recv_frame *precv_frame)
+static unsigned int OnDeAuth(struct adapter *padapter, struct recv_frame *precv_frame)
 {
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)precv_frame->rx_data;
 	unsigned short	reason;

drivers/staging/r8188eu/include/rtw_mlme_ext.h

@@ -538,8 +538,6 @@ void start_create_ibss(struct adapter *padapter);
 
 unsigned int OnAuth(struct adapter *padapter,
 		    struct recv_frame *precv_frame);
-unsigned int OnDeAuth(struct adapter *padapter,
-		      struct recv_frame *precv_frame);
 unsigned int OnAction(struct adapter *padapter,
 		      struct recv_frame *precv_frame);