docs: removed unused post layout

docs/themes/cypress/layout/partial/post.swig

@@ -1,16 +0,0 @@
-<article class="article post" itemscope itemtype="http://schema.org/Article">
-  <header class="article-header">
-    {% if is_post() %}
-      <h1 class="article-title" itemprop="name">{{ post.title }}</h1>
-    {% else %}
-      <h1>
-        <a href="{{ url_for(post.path) }}" class="article-title" itemprop="name">{{ post.title }}</a>
-      </h1>
-    {% endif %}
-    <a href="{{ url_for(post.path) }}" class="article-date">{{ time_tag(post.date) }}</a>
-  </header>
-  <div class="article-content" itemprop="articleBody">
-    {{ page_anchor(post.content) }}
-  </div>
-  {{ partial('partial/comment') }}
-</article>