Fix some more fallout with thread-less APR caused by the svn_mutex merge.
Fix some more fallout with thread-less APR caused by the svn_mutex merge.

* subversion/libsvn_subr/dso.c
  (svn_dso_initialize2): Don't enable mutexes if APR is thread-less.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1182497 13f79535-47bb-0310-9956-ffa450edef68

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