Revert "Try adding an IPv6 address to interface lo"
Revert "Try adding an IPv6 address to interface lo"

This reverts commit 62ac943afa64fd4fc16f47c2f23fd90f7c5fff81.

urweb/debian-urweb,urweb/debian-urweb,urweb/debian-urweb,urweb/debian-urweb,urweb/debian-urweb