Removed redundant condition

Author: mikicz

naucse/templates/_base_course.html

@@ -9,7 +9,7 @@
         {% if course is defined %}
             <header class="lesson-header">
                 <a href="{{ url_for('index') }}">Nauč se Python </a>
-                {% if course is defined and course.vars.get('coach-present') %}
+                {% if course.vars.get('coach-present') %}
                 > <a href="{{ url_for('runs') }}">Kurzy</a>
                 {% else %}
                 > <a href="{{ url_for('courses') }}">Materiály</a>
@@ -59,4 +59,4 @@
     </div>
 </div>
 
-{% endblock content %}
+{% endblock content %}