The documentation claims that the check recognizes `ASSERT_THAT`, but it doesn't
recognize any googletest macros at the moment. This patch removes the reference.
Ensure that a value exists using common macros
----------------------------------------------
-The check is aware of common macros like ``CHECK``, ``DCHECK``, and
-``ASSERT_THAT``. Those can be used to ensure that an optional object has
-a value. For example:
+The check is aware of common macros like ``CHECK`` and ``DCHECK``. Those can be
+used to ensure that an optional object has a value. For example:
.. code-block:: c++