mods: remove ability to manually perform mass edits.

Remove the ability for mods to manually perform mass edits without going
through the forum.

app/views/moderator/tags/edit.html.erb

@@ -1,13 +0,0 @@
-<% page_title "Mass Edit" %>
-
-<div id="c-moderator-tags">
-  <div id="a-edit">
-    <h1>Mass Edit</h1>
-
-    <%= edit_form_for(:tag, url: moderator_tag_path, method: :put) do |f| %>
-      <%= f.input :antecedent, input_html: { value: params[:antecedent], "data-autocomplete": "tag-query" } %>
-      <%= f.input :consequent, input_html: { value: params[:consequent], "data-autocomplete": "tag-edit" } %>
-      <%= f.submit "Submit" %>
-    <% end %>
-  </div>
-</div>