Issue #3263793 by naveenvalecha: Move tracker help topics to tracker module

core/modules/help_topics/help_topics/core.tracking_content.html.twig

@@ -3,9 +3,8 @@ label: 'Tracking the content of your website'
 top_level: true
 ---
 <h2>{% trans %}Tracking overview{% endtrans %}</h2>
-<p>{% trans %}There are three core modules that provide tracking:{% endtrans %}</p>
+<p>{% trans %}There are two core modules that provide tracking:{% endtrans %}</p>
 <ul>
-  <li>{% trans %}The core Activity Tracker module provides a <em>Recent content</em> page that shows new and updated content, and an <em>Activity</em> tab for user profiles that shows specific users' new and updated content.{% endtrans %}</li>
   <li>{% trans %}The core History module tracks how recently users have viewed content items, and provides a Views field and filter that can be used to show users content that they haven't yet seen.{% endtrans %}</li>
   <li>{% trans %}The core Statistics module tracks how many times content items have been viewed, and provides a popular content block and a popularity counter for content item pages.{% endtrans %}</li>
 </ul>

core/modules/help_topics/help_topics/history.tracking_user_content.html.twig

@@ -3,7 +3,6 @@ label: 'Tracking which content a user has visited'
 related:
   - core.tracking_content
   - statistics.tracking_popular_content
-  - tracker.tracking_changed_content
 ---
 <h2>{% trans %}What content visits are tracked?{% endtrans %}</h2>
 <p>{% trans %}The core History module tracks when each logged-in user has most recently visited each content item page on the site. This allows content to be marked as <em>new</em> or <em>updated</em> for each user, meaning that it was newly created or has been updated since the last time they visited its page. These records are kept for one month, meaning that content older than one month is never marked as new or updated.{% endtrans %}</p>

core/modules/help_topics/help_topics/statistics.tracking_popular_content.html.twig

@@ -3,7 +3,6 @@ label: 'Tracking and displaying popular content'
 related:
   - core.tracking_content
   - history.tracking_user_content
-  - tracker.tracking_changed_content
   - block.place
 ---
 {% set statistics_settings = render_var(url('statistics.settings')) %}