Remove old Plausible.Site.Membership references (#4921)

* remove old membership refs

* remove unused functions

lib/plausible/site/memberships/accept_invitation.ex

@@ -32,8 +32,10 @@ defmodule Plausible.Site.Memberships.AcceptInvitation do
           | Ecto.Changeset.t()
           | :no_plan
 
+  @type membership :: %Plausible.Teams.Membership{}
+
   @spec bulk_transfer_ownership_direct([Site.t()], Auth.User.t()) ::
-          {:ok, [Site.Membership.t()]} | {:error, transfer_error()}
+          {:ok, [membership]} | {:error, transfer_error()}
   def bulk_transfer_ownership_direct(sites, new_owner) do
     Repo.transaction(fn ->
       for site <- sites do

lib/plausible/sites.ex

@@ -346,40 +346,4 @@ defmodule Plausible.Sites do
       select: s
     )
   end
-
-  def owned_sites_locked?(user) do
-    user
-    |> owned_sites_query()
-    |> where([s], s.locked == true)
-    |> Repo.exists?()
-  end
-
-  def owned_sites_count(user) do
-    user
-    |> owned_sites_query()
-    |> Repo.aggregate(:count)
-  end
-
-  def owned_sites_domains(user) do
-    user
-    |> owned_sites_query()
-    |> select([site], site.domain)
-    |> Repo.all()
-  end
-
-  def owned_site_ids(user) do
-    user
-    |> owned_sites_query()
-    |> select([site], site.id)
-    |> Repo.all()
-  end
-
-  defp owned_sites_query(user) do
-    from(s in Site,
-      join: sm in Site.Membership,
-      on: sm.site_id == s.id,
-      where: sm.role == :owner,
-      where: sm.user_id == ^user.id
-    )
-  end
 end