Tidy up: get rid of some unnecessary #includes and a macro.
Tidy up: get rid of some unnecessary #includes and a macro.

* subversion/tests/libsvn_fs/locks-test.c
  Tidy up.

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