Remove a couple of redundant checks that we get in the DB for free.
Remove a couple of redundant checks that we get in the DB for free.

* subversion/libsvn_wc/adm_ops.c
  (svn_wc_set_changelist2): As above.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion