refactor(complementary): Remove "GitHub" section

Author: pan93412

templates/complementary/index.html.twig

@@ -70,12 +70,6 @@
                     題，少的每題扣 {{ constant('\\App\\Service\\PointCalculationService::weeklyPerQuestionXpPoint') }} 分。
                 </li>
             </ul>
-
-            <p>
-                相關計分原始碼可以參考
-                <a href="https://github.com/database-playground/app-sf/blob/master/src/Service/PointCalculationService.php"
-                >GitHub 的對應程式碼</a
-                >。</p>
         </section>
     </main>
 {% endblock %}