Whoops! Removed sphinx references

IPython/nbconvert/exporters/exporter.py

@@ -68,7 +68,6 b' class Exporter(LoggingConfigurable):'
                                  nbpreprocessors.CSSHTMLHeaderPreprocessor,
                                  nbpreprocessors.RevealHelpPreprocessor,
                                  nbpreprocessors.LatexPreprocessor,
-                                 nbpreprocessors.SphinxPreprocessor,
                                  nbpreprocessors.HighlightMagicsPreprocessor],
         config=True,
         help="""List of preprocessors available by default, by name, namespace, 

IPython/nbconvert/preprocessors/__init__.py

@@ -5,7 +5,6 b' from .svg2pdf import SVG2PDFPreprocessor'
 from .extractoutput import ExtractOutputPreprocessor
 from .revealhelp import RevealHelpPreprocessor
 from .latex import LatexPreprocessor
-from .sphinx import SphinxPreprocessor
 from .csshtmlheader import CSSHTMLHeaderPreprocessor
 from .highlightmagics import HighlightMagicsPreprocessor