Remove rmagic docs

Leaving intersphinx link to rpy2 docs.

docs/source/conf.py

@@ -189,7 +189,8 b' html_additional_pages = {'
 # Output file base name for HTML help builder.
 htmlhelp_basename = 'ipythondoc'
 
-intersphinx_mapping = {'python': ('http://docs.python.org/2/', None)}
+intersphinx_mapping = {'python': ('http://docs.python.org/2/', None),
+                       'rpy2': ('http://rpy.sourceforge.net/rpy2/doc-2.4/html/', None)}
 
 # Options for LaTeX output
 # ------------------------

docs/source/config/extensions/index.rst

@@ -92,9 +92,11 b' Extensions bundled with IPython'
 
    autoreload
    cythonmagic
-   rmagic
    storemagic
    sympyprinting
 
 * ``octavemagic`` used to be bundled, but is now part of `oct2py <http://blink1073.github.io/oct2py/docs/>`_.
   Use ``%load_ext oct2py.ipython`` to load it.
+* ``rmagic`` is now part of `rpy2 <http://rpy.sourceforge.net/>`_. Use
+  ``%load_ext rpy2.ipython`` to load it, and see :mod:`rpy2.ipython.rmagic` for
+  details of how to use it.

docs/source/whatsnew/version0.13.rst

@@ -317,7 +317,7 b' extremely useful. The following extensions are provided:'
 .. _octave: http://www.gnu.org/software/octave
 .. _oct2py: http://pypi.python.org/pypi/oct2py
 
-**R magics** (extension :ref:`rmagic <extensions_rmagic>`)
+**R magics** (extension ``rmagic``)
     This extension provides several magics that support calling code written in
     the R_ language for statistical data analysis.  You can execute
     single-lines or whole blocks of R code, capture both output and figures