svncutter can be removed

The svncutter utility under contrib/server-side can be removed. I
wrote it, and I'd do this myself, but I no longer seem to have current
write-access credentials to the repo.

A revised and improved version named 'repocutter' is now part of the
reposurgeon distribution, where it actually has proper documentation
and tests.

-- 
		Eric S. Raymond
The IRS has become morally corrupted by the enormous power which we in
Congress have unwisely entrusted to it. Too often it acts like a
Gestapo preying upon defenseless citizens.
	-- Senator Edward V. Long