Merge pull request matplotlib#9403 from NelleV/doc_doc

MAINT Documentation on doc is outdated

Author: anntzer

doc/devel/documenting_mpl.rst

@@ -340,21 +340,6 @@ Plot directive documentation
 
 .. automodule:: matplotlib.sphinxext.plot_directive
 
-Static figures
---------------
-
-Any figures that rely on optional system configurations need to be handled a
-little differently. These figures are not to be generated during the
-documentation build, in order to keep the prerequisites to the documentation
-effort as low as possible. Please run the :file:`doc/pyplots/make.py` script
-when adding such figures, and commit the script **and** the images to
-git. Please also add a line to the README in doc/pyplots for any additional
-requirements necessary to generate a new figure. Once these steps have been
-taken, these figures can be included in the usual way::
-
-   .. plot:: mpl_examples/text_labels_and_annotations/tex_demo.py
-      :include-source:
-
 Examples
 --------