Remove redundant code for trying to optimise pipes supplied via wsgi.file_wrapper.
Remove redundant code for trying to optimise pipes supplied via
wsgi.file_wrapper.

frewsxcv/mod_wsgi,SGCreations/mod_wsgi,MinFu/mod_wsgi,GrahamDumpleton/mod_wsgi,Zunonia/mod_wsgi,MinFu/mod_wsgi,paboldin/mod_wsgi,MinFu/mod_wsgi,SGCreations/mod_wsgi,Zunonia/mod_wsgi,Zunonia/mod_wsgi,paboldin/mod_wsgi,MinFu/mod_wsgi,GrahamDumpleton/mod_wsgi,Zunonia/mod_wsgi,SGCreations/mod_wsgi,frewsxcv/mod_wsgi,paboldin/mod_wsgi,frewsxcv/mod_wsgi,GrahamDumpleton/mod_wsgi,frewsxcv/mod_wsgi,paboldin/mod_wsgi,SGCreations/mod_wsgi