added back get_suits_from_selected_deck in cornucopia

lib/copi/cornucopia.ex

@@ -103,6 +103,18 @@ defmodule Copi.Cornucopia do
   def change_game(%Game{} = game, attrs \\ %{}) do
     Game.changeset(game, attrs)
   end
+
+  def get_suits_from_selected_deck(selected_edition) do
+    database_query = from c in Card,
+    where: c.edition == ^selected_edition,
+    select: c.category,
+    distinct: true
+
+    Enum.reduce(["Wild Card", "WILD CARD"], Repo.all(database_query), fn item, acc ->
+      List.delete(acc, item)
+    end)
+  end
+
   @doc """
   Returns the list of players.