Fix bin/lesson_initialize.py

If _extras/figures.md exists,

    $ ./bin/lesson_initialize.py

will return

    Warning: _extras/figures.md already exists.
    **Exiting without creating files.**

diff --git a/_extras/figures.md b/_extras/figures.md
deleted file mode 100644 (file)
index f0401f0..0000000
--- a/_extras/figures.md
+++ /dev/null
@@ -1,39 +0,0 @@
----
-layout: page
-title: Figures
----
-<script>
-  window.onload = function() {
-    var lesson_episodes = [
-    {% for episode in site.episodes %}
-    "{{ episode.url}}"{% unless forloop.last %},{% endunless %}
-    {% endfor %}
-    ];
-    var xmlHttp = [];  /* Required since we are going to query every episode. */
-    for (i=0; i < lesson_episodes.length; i++) {
-      xmlHttp[i] = new XMLHttpRequest();
-      xmlHttp[i].episode = lesson_episodes[i];  /* To enable use this later. */
-      xmlHttp[i].onreadystatechange = function() {
-        if (this.readyState == 4 && this.status == 200) {
-          var article_here = document.getElementById(this.episode);
-          var parser = new DOMParser();
-          var htmlDoc = parser.parseFromString(this.responseText,"text/html");
-          var htmlDocArticle = htmlDoc.getElementsByTagName("article")[0];
-          article_here.appendChild(htmlDocArticle.getElementsByTagName("h1")[0]);
-          for (let image of htmlDocArticle.getElementsByTagName("img")) {
-            article_here.appendChild(image);
-          }
-        }
-      }
-      episode_url = "{{ page.root }}" + lesson_episodes[i];
-      xmlHttp[i].open("GET", episode_url);
-      xmlHttp[i].send(null);
-    }
-  }
-</script>
-{% comment %}
-Create anchor for each one of the episodes.
-{% endcomment %}
-{% for episode in site.episodes %}
-<article id="{{ episode.url }}"></article>
-{% endfor %}