Fix the mod_dav_svn Windows build.
Fix the mod_dav_svn Windows build.

* subversion/mod_dav_svn/mod_dav_svn.dsp: Removed libsvn_subr/pipe.c.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@844226 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion