permission_broker: revert "permission_broker: Add OpenPath method."

This reverts commit 2a2075d704d3f8081e740765ab6c69e5c003e38e.
After that CL:275309 broker can't install rules for web server.
-A INPUT -p tcp -m tcp --dport 443 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT

BUG=brillo:1222
TEST=run 'sudo iptables --list-rules' on gizmo.

Change-Id: I95b2bed347e7552091b5d8bf27ecbc0f9bd6073f
Reviewed-on: https://chromium-review.googlesource.com/281091
Reviewed-by: Vitaly Buka <vitalybuka@chromium.org>
Commit-Queue: Vitaly Buka <vitalybuka@chromium.org>
Tested-by: Vitaly Buka <vitalybuka@chromium.org>
5 files changed