util: remove unused realpath (
issue4063)
util.realpath was in use for only 5 days from
dbdb777502dc
until it was backed out in
c519cd8f0169 because it caused
issue3077 and
issue3071.
Minimal hgk check
$ echo "[extensions]" >> $HGRCPATH
$ echo "hgk=" >> $HGRCPATH
$ hg init repo
$ cd repo
$ echo a > a
$ hg ci -Am adda
adding a
$ hg debug-cat-file commit 0
tree a0c8bcbbb45c
parent 000000000000
author test 0 0
revision 0
branch default
phase draft
adda
$ cd ..