Revert "Fix duplicate item detection issue"

qtest.c

@@ -475,14 +475,15 @@ static bool do_dedup(int argc, char *argv[])
  }
 
  struct list_head *l_tmp = current->q->next;
+ bool is_this_dup = false;
  // Compare between new list and old one
  list_for_each_entry (item, &l_copy, list) {
  // Skip comparison with new list if the string is duplicate
  bool is_next_dup =
  item->list.next != &l_copy &&
  strcmp(list_entry(item->list.next, element_t, list)->value,
  item->value) == 0;
- if (is_next_dup) {
+ if (is_this_dup || is_next_dup) {
  // Update list size
  current->size--;
  } else if (l_tmp != current->q &&
@@ -491,6 +492,7 @@ static bool do_dedup(int argc, char *argv[])
  l_tmp = l_tmp->next;
  else
  ok = false;
+ is_this_dup = is_next_dup;
  }
  // All elements in new list should be traversed
  ok = ok && l_tmp == current->q;