Deprecate the network and staticroute scripts

These scripts are not supported, and they have several major design
issues such as not being able to stop, start or allow a dependency on a
single interface.

README.newnet

@@ -1,40 +0,0 @@
-The following applies only to the newnet stack, which is not presently
-maintained in OpenRC. The oldnet stack is maintained instead.
-- Robin H. Johnson <robbat2@gentoo.org>, 2011/02/21
-
-OpenRC Network Ideals
----------------------
-
-The new style networking for OpenRC is very simplistic - provide a basic means
-of configuring static interface address and routes whilst allowing the
-possibility to run any command at any point.
-
-In a nutshell, init.d/network is a wrapper around ifconfig(8) and
-init.d/staticroute is wrapper around route(8).
-
-In the Perfect World (TM) ifconfig should be able to configure everything
-about the interface easily * . The BSD family almost get this right and Linux
-epically fails.
-
-* Only static configuration, including link setup.
-For dynamic, static, IPv4LL, arping and per ssid IPv4 setup dhcpcd-5.x
-provides your needs.
-
-It fails because there are many tools to do the same job and often have
-vastly different syntax where they could be similar. In other words, there
-is no coherence.
-
-OpenRC-0.4.x and older (inc Gentoo baselayout-1) had a collection of scripts
-for each tool and allowed a script per interface. Over the years, this design
-has proven very hard to maintain as each user has their own idea of how
-things should work. Also, there were (and still are) race conditions.
-
-So where do we go from here?
-Well, it's possible to use the new network scripts using the tools
-currently available. It's just harder as you have to know them and their
-documentation can be lacking at times.
-The correct end goal is a BSD style ifconfig tool.
-I've started work on it, but the project has stalled somewhat.
-It's display only right now and the source is not yet publicly available.
-If you have the skills and share the vision then contact me privately and
-we'll take it from there.