Remove unused csi-hostpath-testing.yaml

This yaml file uses `docker.io/alpine/socat:1.7.4.3-r0`, either we figure out
how to replace the image or just eliminate the yaml itself if it is not
being used for testing anything in this repository.

Found this when we run `e2e.test --list-images`, the dockerhub image reference
above shows up which gives a false impression that we depend on this image
for our testing purposes. Also we should NOT depend on a dockerhub image anyways!

Signed-off-by: Davanum Srinivas <davanum@gmail.com>

test/e2e/testing-manifests/storage-csi/hostpath/hostpath/csi-hostpath-testing.yaml

@@ -1,83 +0,0 @@
-# WARNING: this is only for testing purposes. Do not install in a production
-# cluster.
-#
-# This exposes the hostpath's Unix domain csi.sock as a TCP port to the
-# outside world. The mapping from Unix domain socket to TCP is done
-# by socat.
-#
-# This is useful for testing with csi-sanity or csc.
-
-apiVersion: v1
-kind: Service
-metadata:
-  name: hostpath-service
-  labels:
-    app.kubernetes.io/instance: hostpath.csi.k8s.io
-    app.kubernetes.io/part-of: csi-driver-host-path
-    app.kubernetes.io/name: csi-hostpath-socat
-    app.kubernetes.io/component: socat
-spec:
-  type: NodePort
-  selector:
-    app.kubernetes.io/instance: hostpath.csi.k8s.io
-    app.kubernetes.io/part-of: csi-driver-host-path
-    app.kubernetes.io/name: csi-hostpath-socat
-    app.kubernetes.io/component: socat
-  ports:
-  - port: 10000 # fixed port inside the pod, dynamically allocated port outside
----
-kind: StatefulSet
-apiVersion: apps/v1
-metadata:
-  name: csi-hostpath-socat
-  labels:
-    app.kubernetes.io/instance: hostpath.csi.k8s.io
-    app.kubernetes.io/part-of: csi-driver-host-path
-    app.kubernetes.io/name: csi-hostpath-socat
-    app.kubernetes.io/component: socat
-spec:
-  serviceName: "csi-hostpath-socat"
-  replicas: 1
-  selector:
-    matchLabels:
-      app.kubernetes.io/instance: hostpath.csi.k8s.io
-      app.kubernetes.io/part-of: csi-driver-host-path
-      app.kubernetes.io/name: csi-hostpath-socat
-      app.kubernetes.io/component: socat
-  template:
-    metadata:
-      labels:
-        app.kubernetes.io/instance: hostpath.csi.k8s.io
-        app.kubernetes.io/part-of: csi-driver-host-path
-        app.kubernetes.io/name: csi-hostpath-socat
-        app.kubernetes.io/component: socat
-    spec:
-      affinity:
-        podAffinity:
-          requiredDuringSchedulingIgnoredDuringExecution:
-          - labelSelector:
-              matchExpressions:
-              - key: app.kubernetes.io/instance
-                operator: In
-                values:
-                  - hostpath.csi.k8s.io
-            topologyKey: kubernetes.io/hostname
-      containers:
-        - name: socat
-          image: docker.io/alpine/socat:1.7.4.3-r0
-          args:
-            - tcp-listen:10000,fork,reuseaddr
-            - unix-connect:/csi/csi.sock
-          securityContext:
-            # This is necessary only for systems with SELinux, where
-            # non-privileged sidecar containers cannot access unix domain socket
-            # created by privileged CSI driver container.
-            privileged: true
-          volumeMounts:
-          - mountPath: /csi
-            name: socket-dir
-      volumes:
-        - hostPath:
-            path: /var/lib/kubelet/plugins/csi-hostpath
-            type: DirectoryOrCreate
-          name: socket-dir

test/utils/image/csi_manifests_test.go

@@ -48,7 +48,6 @@ func TestCSIImageConfigs(t *testing.T) {
 		"gcp-compute-persistent-disk-csi-driver",
 
 		// For some hostpath tests.
-		"socat",
 		"busybox",
 
 		// For AnyVolumeDataSource feature tests.