Revert foreground deletion of pvc

Author: sfc-gh-jmckulka

testing/chainsaw/e2e/pgbackrest-restore/chainsaw-test.yaml

@@ -83,11 +83,9 @@ spec:
 
  - name: 'Delete Cluster #1'
  description: >
- Delete this clone and wait for PVCs to be cleaned up to free disk space
+ Delete this clone
  try:
  - delete:
- deletionPropagationPolicy: Foreground
- timeout: 3m
  ref:
  apiVersion: ($postgrescluster.apiVersion)
  kind: PostgresCluster
@@ -160,11 +158,9 @@ spec:
 
  - name: 'Delete Cluster #2'
  description: >
- Delete this clone and wait for PVCs to be cleaned up to free disk space
+ Delete this clone
  try:
  - delete:
- deletionPropagationPolicy: Foreground
- timeout: 3m
  ref:
  apiVersion: ($postgrescluster.apiVersion)
  kind: PostgresCluster