*: Simplify kube.PersistentVolumeClaims

Change-Id: I0a3e44de9f1c4db146fd1e493741f5fe381da3ae
Reviewed-on: https://gerrit.hackerspace.pl/c/hscloud/+/1768
Reviewed-by: q3k <q3k@hackerspace.pl>
diff --git a/app/matrix/lib/appservice-irc.libsonnet b/app/matrix/lib/appservice-irc.libsonnet
index 7906463..92a1b21 100644
--- a/app/matrix/lib/appservice-irc.libsonnet
+++ b/app/matrix/lib/appservice-irc.libsonnet
@@ -49,15 +49,8 @@
 
         dataVolume: kube.PersistentVolumeClaim("appservice-irc-%s" % [name]) {
             metadata+: cfg.metadata,
-            spec+: {
-                storageClassName: cfg.storageClassName,
-                accessModes: [ "ReadWriteOnce" ],
-                resources: {
-                    requests: {
-                        storage: "10Gi",
-                    },
-                },
-            },
+            storage: "10Gi",
+            storageClass: cfg.storageClassName,
         },
 
         bootstrapJob: if cfg.bootstrapJob then (kube.Job("appservice-irc-%s-bootstrap" % [name]) {