Fix build-svn-deps-win.pl to really not download NEON for svn 1.8.x or newer.
Fix build-svn-deps-win.pl to really not download NEON for svn 1.8.x or newer.

* tools/dev/build-svn-deps-win.pl
  (download_dependencies,extract_dependencies): $NEON ends up always being
    defined, so just evaluate if it is true.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1501631 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion