Following up on r1597989, remove a couple of unused variables.

* subversion/libsvn_fs_fs/transaction.c
  (write_final_changed_path_info): Remove unused variable 'hi'.

* subversion/svnserve/serve.c
  (log_cmd): Remove unused variable 'move_behavior_param'.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1600872 13f79535-47bb-0310-9956-ffa450edef68