tags: remove inactive debugging code.
It was left in just in case things went wrong with the tag cache in
Mercurial 1.4, so we could easily crank up the verbosity with a
one-line change. There have been no problems in 1.4 or 1.5, so it
should be safe to drop this now.
#!/bin/sh
mkdir t
cd t
hg init
echo a > a
hg add a
hg commit -m test -d "1000000 0"
rm .hg/requires
hg tip
echo indoor-pool > .hg/requires
hg tip
true