staging: rtl8712: Remove variable xcnt

The variable xcnt being incremented but it is never referenced,
it is redundant and can be removed.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20221021180950.29139-1-colin.i.king@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/rtl8712_xmit.c

@@ -601,7 +601,7 @@ int r8712_xmitframe_complete(struct _adapter *padapter,
 #ifdef CONFIG_R8712_TX_AGGR
 	struct xmit_frame *p2ndxmitframe = NULL;
 #else
-	int res = _SUCCESS, xcnt = 0;
+	int res = _SUCCESS;
 #endif
 
 	phwxmits = pxmitpriv->hwxmits;
@@ -673,7 +673,6 @@ int r8712_xmitframe_complete(struct _adapter *padapter,
 			dump_xframe(padapter, pxmitframe);
 		else
 			r8712_free_xmitframe_ex(pxmitpriv, pxmitframe);
-		xcnt++;
 #endif
 
 	} else { /* pxmitframe == NULL && p2ndxmitframe == NULL */