chore(admin): remove most visited pages section from user activity

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

templates/admin/user_activity.html

@@ -266,37 +266,6 @@
         {% endif %}
     </div>
 
-    <!-- Most visited pages -->
-    <div class="section">
-        <h2>Najczesciej odwiedzane strony</h2>
-        {% if top_pages %}
-        <div class="table-scroll">
-            <table class="data-table">
-                <thead>
-                    <tr>
-                        <th>#</th>
-                        <th>Sciezka</th>
-                        <th>Odslony</th>
-                        <th>Sredni czas (s)</th>
-                    </tr>
-                </thead>
-                <tbody>
-                    {% for p in top_pages %}
-                    <tr>
-                        <td>{{ loop.index }}</td>
-                        <td><code>{{ p.path }}</code></td>
-                        <td class="num">{{ p.view_count }}</td>
-                        <td class="num">{{ p.avg_time_sec }}</td>
-                    </tr>
-                    {% endfor %}
-                </tbody>
-            </table>
-        </div>
-        {% else %}
-        <p class="text-muted">Brak danych o odslonach stron.</p>
-        {% endif %}
-    </div>
-
     <!-- Most active users -->
     <div class="section">
         <h2>Najbardziej aktywni uzytkownicy</h2>