This is because removing an item from the database will not be altomatically removed from the Listview item array.
If the items are selected in Listview just add these lines in the remove button click event:
For Each i As ListViewItem In ListView1.SelectedItems
ListView1.Items.Remove(i)
Next
This code will automatically remove the selected items in Listview.
Another way to do this would be to delete all Listview items and then call the function you used to place all items in Listview.
ListView1.Items.Clear()
ColocarItemsNaListView()