A minor code cleanup in FSFS.
A minor code cleanup in FSFS.

* subversion/libsvn_fs_fs/cached_data.c
  (block_read_contents): We don't return any data, so we don't need
                         a RESULT_POOL here.
  (block_read): Update caller.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1740722 13f79535-47bb-0310-9956-ffa450edef68

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