util: remove unused private constant '_hextochr'
The only user, _urlunquote(), was removed by
81d38478fced.
--- a/mercurial/util.py Thu Mar 22 21:20:47 2018 +0900
+++ b/mercurial/util.py Thu Mar 22 21:32:19 2018 +0900
@@ -34,7 +34,6 @@
import signal
import socket
import stat
-import string
import subprocess
import sys
import tempfile
@@ -3076,9 +3075,6 @@
"""
return _booleans.get(s.lower(), None)
-_hextochr = dict((a + b, chr(int(a + b, 16)))
- for a in string.hexdigits for b in string.hexdigits)
-
class url(object):
r"""Reliable URL parser.