remove fundamentals refs

Author: rachel-mack

source/includes/fundamentals-sections.rst

@@ -71,17 +71,6 @@ What's New
 For a list of new features and changes in each version, see the
 :ref:`What's New <java-whats-new>` section.
 
-Usage Examples
---------------
-
-For fully runnable code snippets and explanations for common
-methods, see the :doc:`Usage Examples </usage-examples>` section.
-
-Fundamentals
-------------
-
-.. include:: /includes/fundamentals-sections.rst
-
 API Documentation
 -----------------