Remove unused constant.
Remove unused constant.

* subversion/libsvn_wc/entries.h (SVN_WC__ENTRY_MODIFY_ALL): Remove.

Found by: malcolm

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