Remove unused autoscaling files. (#7407)

docs/user-guide/horizontal-pod-autoscaling/hpa-php-apache.yaml

@@ -1,13 +0,0 @@
-apiVersion: autoscaling/v1
-kind: HorizontalPodAutoscaler
-metadata:
-  name: php-apache
-  namespace: default
-spec:
-  scaleTargetRef:
-    apiVersion: apps/v1beta1
-    kind: Deployment
-    name: php-apache
-  minReplicas: 1
-  maxReplicas: 10
-  targetCPUUtilizationPercentage: 50

docs/user-guide/horizontal-pod-autoscaling/image/Dockerfile

@@ -1,19 +0,0 @@
-# Copyright 2016 The Kubernetes Authors All rights reserved.
-#
-# 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.
-
-FROM php:5-apache
-
-ADD index.php /var/www/html/index.php
-
-RUN chmod a+rx index.php

docs/user-guide/horizontal-pod-autoscaling/image/index.php

@@ -1,7 +0,0 @@
-<?php
-$x = 0.0001;
-for ($i = 0; $i <= 1000000; $i++) {
-	$x += sqrt($x);
-}
-echo "OK!";
-?>