[PATCH] - Remove unneeded code from svnadmin

Log message and patch attached.

svnadmin create accepts the --config-dir option but no longer uses it
for anything. I do not believe we can remove the option from the UI,
but we can remove the code that get the configuration. The reason is
that I have observed a couple of odd scenarios where this code causes
problems.

1) The process running svnadmin does not have read authority to
$HOME/.subversion For example, here is an example from a mailing
list:

http://lists.okfn.org/pipermail/kforge-user/2007-February/000088.html

2) Have observed similar problem on Windows when the process is
running and it could not determine the home folder. Never figured out
the root cause of this problem, as normally this does work OK on
Windows.

The workaround people have used is to specify --config-dir and point
it at ' ' or some random folder they can read. But if we just removed
this code they would not get a problem in the first place.

Ran make check and manually tested the binary.

-- 
Thanks
Mark Phippard
http://markphip.blogspot.com/