DOC fix non-working link (by removing it).

See #1260

docs/topics/media-pipeline.rst

@@ -71,7 +71,7 @@ The Images Pipeline uses `Pillow`_ for thumbnailing and normalizing images to
 JPEG/RGB format, so you need to install this library in order to use it.
 `Python Imaging Library`_ (PIL) should also work in most cases, but it is known
 to cause troubles in some setups, so we recommend to use `Pillow`_ instead of
-`PIL <Python Imaging Library>`_.
+PIL.
 
 .. _Pillow: https://github.com/python-pillow/Pillow
 .. _Python Imaging Library: http://www.pythonware.com/products/pil/