dynk8s-provisioner: Remove PVC

The _dynk8s-provisioner_ only needs writable storage to store copies of
the AWS SNS notifications it receives for debugging purposes.  We don't
need to keep these around indefinitely, so using ephemeral node-local
storage is sufficient.  I actually want to get rid of that "feature"
anyway...

dynk8s-provisioner/dynk8s-provisioner.yaml

@@ -1,20 +1,3 @@
-apiVersion: v1
-kind: PersistentVolumeClaim
-metadata:
-  name: dynk8s-provisioner-pvc
-  namespace: dynk8s
-  labels:
-    app.kubernetes.io/name: dynk8s-provisioner-pvc
-    app.kubernetes.io/instance: dynk8s-provisioner
-    app.kubernetes.io/component: storage
-    app.kubernetes.io/part-of: dynk8s-provisioner
-spec:
-  accessModes:
-  - ReadWriteOnce
-  resources:
-    requests:
-      storage: 1Gi
-
 ---
 apiVersion: apps/v1
 kind: StatefulSet
@@ -70,8 +53,7 @@ spec:
       serviceAccountName: dynk8s-provisioner
       volumes:
       - name: dynk8s-provisioner
-        persistentVolumeClaim:
-          claimName: dynk8s-provisioner-pvc
+        emptyDir: {}
 
 ---
 apiVersion: v1