Removed non-md files from docs. Moved doc yamls to test/fixtures.

Most of the contents of docs/ has moved to kubernetes.github.io.
Development of the docs and accompanying files has continued there, making
the copies in this repo stale. I've removed everything but the .md files
which remain to redirect old links. The .yaml config files in the docs
were used by some tests, these have been moved to test/fixtures/doc-yaml,
and can remain there to be used by tests or other purposes.

docs/user-guide/logging-demo/Makefile

@@ -1,40 +0,0 @@
-# Copyright 2016 The Kubernetes Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# Makefile for launching synthetic logging sources (any platform)
-# and for reporting the forwarding rules for the
-# Elasticsearch and Kibana pods for the GCE platform.
-# For examples of how to observe the ingested logs please
-# see the appropriate getting started guide e.g.
-# Google Cloud Logging: https://github.com/kubernetes/kubernetes/blob/master/docs/getting-started-guides/logging.md
-# With Elasticsearch and Kibana logging: https://github.com/kubernetes/kubernetes/blob/master/docs/getting-started-guides/logging-elasticsearch.md
-
-.PHONY: up down logger-up logger-down logger10-up logger10-down
-
-up:	logger-up logger10-up
-
-down:	logger-down logger10-down
-
-logger-up:
-	kubectl create -f synthetic_0_25lps.yaml
-
-logger-down:
-	kubectl delete pod synthetic-logger-0.25lps-pod
-
-logger10-up:
-	kubectl create -f synthetic_10lps.yaml
-
-logger10-down:
-	kubectl delete pod synthetic-logger-10lps-pod
-

docs/user-guide/logging-demo/synthetic_0_25lps.yaml

@@ -1,30 +0,0 @@
-# This pod specification creates an instance of a synthetic logger. The logger
-# is simply a program that writes out the hostname of the pod, a count which increments
-# by one on each iteration (to help notice missing log enteries) and the date using
-# a long format (RFC-3339) to nano-second precision. This program logs at a frequency
-# of 0.25 lines per second. The shellscript program is given directly to bash as -c argument
-# and could have been written out as:
-#   i="0"
-#   while true
-#   do
-#     echo -n "`hostname`: $i: "
-#     date --rfc-3339 ns
-#     sleep 4
-#     i=$[$i+1]
-#   done
-apiVersion: v1
-kind: Pod
-metadata:
-  labels:
-    name: synth-logging-source
-  name: synthetic-logger-0.25lps-pod
-spec:
-  containers:
-  - name: synth-lgr
-    image: ubuntu:14.04
-    args:
-    - bash
-    - -c
-    - 'i="0"; while true; do echo -n "`hostname`: $i: "; date --rfc-3339 ns; sleep
-      4; i=$[$i+1]; done'
-    

docs/user-guide/logging-demo/synthetic_10lps.yaml

@@ -1,30 +0,0 @@
-# This pod specification creates an instance of a synthetic logger. The logger
-# is simply a program that writes out the hostname of the pod, a count which increments
-# by one on each iteration (to help notice missing log enteries) and the date using
-# a long format (RFC-3339) to nano-second precision. This program logs at a frequency
-# of 0.25 lines per second. The shellscript program is given directly to bash as -c argument
-# and could have been written out as:
-#   i="0"
-#   while true
-#   do
-#     echo -n "`hostname`: $i: "
-#     date --rfc-3339 ns
-#     sleep 4
-#     i=$[$i+1]
-#   done
-apiVersion: v1
-kind: Pod
-metadata:
-  labels:
-    name: synth-logging-source
-  name: synthetic-logger-10lps-pod
-spec:
-  containers:
-  - name: synth-lgr
-    image: ubuntu:14.04
-    args:
-    - bash
-    - -c
-    - 'i="0"; while true; do echo -n "`hostname`: $i: "; date --rfc-3339 ns; sleep
-      0.1; i=$[$i+1]; done'
-