Remove experimental move-tracking development.

The former state is now preserved in the branch 'move-tracking-3'.

This approach to move tracking is no longer being pursued.

No impact on public functionality.  It was exposed only through one
stand-alone dev tool 'tools/dev/svnmover' and through one undocumented
environment variable 'SVN_ELEMENT_MERGE' which hooks the code in to the
'svn merge' command.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1915903 13f79535-47bb-0310-9956-ffa450edef68
39 files changed