Remove useless availabilities assign in index

lib/vaccins_web/live/index.ex

@@ -13,7 +13,6 @@ defmodule VaccinsWeb.IndexLive do
      |> assign(
        locations: locations,
        pending: %{},
-       availabilities: locations |> Map.new(&{&1.id, []}),
        location_cs: LocationStore.LocationRaw.changeset(%{}),
        display_cs: false
      )