Remove unimplemented closure filter

https://fizzy.37signals.com/5986089/cards/1558

app/views/cards/index/_closure_filter.html.erb

@@ -1,35 +0,0 @@
-<div class="cards__heading" data-controller="dialog" data-action="keydown.esc->dialog#close click@document->dialog#closeOnClickOutside">
-  <button class="cards__filter btn input input--select borderless overflow-ellipsis fill-transparent" data-action="click->dialog#open:stop">
-    Recently closed
-  </button>
-
-  <dialog class="margin-block-start-half popup panel flex-column align-start gap-half fill-white shadow"
-    aria-label="Closed with reason…" aria-description="Closed with reason…"
-    data-dialog-target="dialog" data-action="turbo:before-cache@document->dialog#close">
-    <strong class="popup__title margin-block-start-half pad-inline-half">Closed with reason…</strong>
-    <%= form_with url: cards_path, method: :get, class: "popup__list",
-          data: { controller: "form" } do |form| %>
-      <% filter.as_params.except(:closure_reason_ids).each do |key, value| %>
-        <%= filter_hidden_field_tag key, value %>
-      <% end %>
-
-      <%= link_to cards_path(filter.as_params.except(:closure_reason_ids)), class: "popup__item btn" do %>
-        <span class="overflow-ellipsis">All recently closed</span>
-      <% end %>
-
-      <% Closure::Reason.all.each do |reason| %>
-        <div class="popup__item btn">
-          <%= form.check_box :closure_reason_ids, {
-                multiple: true,
-                checked: false,
-                data: { action: "change->form#submit" },
-                include_hidden: false,
-          }, reason.label %>
-
-          <%= form.label :closure_reason_ids, reason.label, for: form.field_id(:closure_reason_ids, reason.label), class: "overflow-ellipsis" %>
-          <%= icon_tag "check", size: 18, class: "checked flex-item-justify-end" %>
-        </div>
-      <% end %>
-    <% end %>
-  </dialog>
-</div>

app/views/cards/index/engagement/_closed.html.erb

@@ -1,5 +1,5 @@
 <section id="closed-cards" class="cards cards--closed pad-block">
-  <%= render "cards/index/closure_filter", filter: filter %>
+  <h2 class="cards__heading">Recently closed</h2>
 
   <% if page.used? %>
     <%= render partial: "cards/display/preview", collection: page.records, as: :card, cached: true %>