staging: rtl8188eu: remove function which does nothing

The function rtw_mfree_all_stainfo() is just holding the lock,
traversing the list, and then unlocking. It is not doing anything else.
So removed the function and modified the places from where it was called.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_sta_mgt.c

@@ -143,32 +143,6 @@ inline struct sta_info *rtw_get_stainfo_by_offset(struct sta_priv *stapriv, int
 	return (struct sta_info *)(stapriv->pstainfo_buf + offset * sizeof(struct sta_info));
 }
 
-/*  this function is used to free the memory of lock || sema for all stainfos */
-static void rtw_mfree_all_stainfo(struct sta_priv *pstapriv)
-{
-	struct list_head *plist, *phead;
-	struct sta_info *psta = NULL;
-
-
-	spin_lock_bh(&pstapriv->sta_hash_lock);
-
-	phead = get_list_head(&pstapriv->free_sta_queue);
-	plist = phead->next;
-
-	while (phead != plist) {
-		psta = container_of(plist, struct sta_info, list);
-		plist = plist->next;
-	}
-
-	spin_unlock_bh(&pstapriv->sta_hash_lock);
-
-}
-
-static void rtw_mfree_sta_priv_lock(struct sta_priv *pstapriv)
-{
-	 rtw_mfree_all_stainfo(pstapriv); /* be done before free sta_hash_lock */
-}
-
 u32	_rtw_free_sta_priv(struct	sta_priv *pstapriv)
 {
 	struct list_head *phead, *plist;
@@ -197,8 +171,6 @@ u32	_rtw_free_sta_priv(struct	sta_priv *pstapriv)
 		spin_unlock_bh(&pstapriv->sta_hash_lock);
 		/*===============================*/
 
-		rtw_mfree_sta_priv_lock(pstapriv);
-
 		if (pstapriv->pallocated_stainfo_buf)
 			vfree(pstapriv->pallocated_stainfo_buf);
 	}