Remove an unused parameter from a helper function.
Remove an unused parameter from a helper function.

* subversion/libsvn_subr/mergeinfo.c
  (combine_with_lastrange): Remove the SCRATCH_POOL parameter. It is unused.
  (svn_rangelist_merge2, rangelist_intersect_or_remove): Update callers.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1176904 13f79535-47bb-0310-9956-ffa450edef68

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