Drop unused common_searches code.

app/views/users/_common_searches.html.erb

@@ -1,19 +0,0 @@
-<!--
-<section id="outer-recent-searches" style="display: none;">
-  <h1>Recent Searches</h1>
-  <ul id="recent-searches">
-  </ul>
-</section>
--->
-
-<script type="text/javascript">
-  $(function() {
-    /*$.get("<%= Danbooru.config.reportbooru_server %>/user_searches", {
-      uid: <%= user.id %>,
-      sig: "<%= sig %>"
-    }, function(data) {
-      $("#recent-searches").html(data);
-      $("#outer-recent-searches").show();
-    });*/
-  });
-</script>

app/views/users/edit.html.erb

@@ -67,7 +67,6 @@
         <%= f.input :disable_mobile_gestures, :as => :select, :hint => "Disable swipe left / swipe right gestures on mobile", :collection => [["No", "false"], ["Yes", "true"]], :include_blank => false %>
         <%= f.input :disable_post_tooltips, :as => :select, :hint => "Disable advanced tooltips when hovering over thumbnails", :collection => [["No", "false"], ["Yes", "true"]], :include_blank => false %>
         <%= f.input :disable_cropped_thumbnails, :as => :select, :hint => "Disable cropped (square) thumbnails on mobile", :collection => [["No", "false"], ["Yes", "true"]], :include_blank => false %>
-        <%= f.input :enable_recent_searches, :as => :select, :collection => [["No", "false"], ["Yes", "true"]], :include_blank => false %>
         <%= f.input :disable_responsive_mode, :as => :select, :collection => [["No", "false"], ["Yes", "true"]], :include_blank => false, :hint => "Disable alternative layout for mobile and tablet" %>
         <%= f.input :opt_out_tracking, :as => :select, :collection => [["No", "false"], ["Yes", "true"]], :include_blank => false, :hint => "Opt out of tracking" %>