Revert "Update adding_pkgs.html"

This reverts commit 2577ce7.

Author: ngam

docs/maintainer/adding_pkgs.html

@@ -595,7 +595,7 @@ <h4>Tests outside of the package<a class="headerlink" href="#tests-outside-of-th
 <p>You need to define an environment variable named <code class="docutils literal notranslate"><span class="pre">CONFIG</span></code>. Its value must be
 the name of one of the three YAML configuration files in the <code class="docutils literal notranslate"><span class="pre">.ci_support</span></code>
 directory (either <code class="docutils literal notranslate"><span class="pre">linux64</span></code>, <code class="docutils literal notranslate"><span class="pre">osx64</span></code>, or <code class="docutils literal notranslate"><span class="pre">win64</span></code>). As an example, you can
-invoke the command as follows (noting that you must have shyaml installed for this to work correctly).</p>
+invoke the command as follows.</p>
 <div class="highlight-sh notranslate"><div class="highlight"><pre><span></span>$ <span class="nb">cd</span> staged-recipes
 $ <span class="nv">CONFIG</span><span class="o">=</span>linux64 ./.scripts/run_docker_build.sh
 </pre></div>
@@ -899,4 +899,4 @@ <h3>Navigation</h3>
     </div>
     <!-- cloud_sptheme 1.4 -->
   </body>
-</html>
+</html>