How to remove sub path folder of pvc when call delete pods, ... with client-go k8s

Question

I using k8s/client-go library to control and develop my application (https://github.com/kubernetes/client-go).

I have an issue when use sub-path of persistent volume claim. Example, I'm having two pod and mount data of each container to 2 subpath ORG1/DIR1 and ORG2/DIR2 on persistent volume claim (efs file), detail in blow:

apiVersion: v1
kind: Pod
metadata:
  name: my-lamp-site
spec:
    containers:
    - name: mysql
      image: mysql
      env:
      - name: MYSQL_ROOT_PASSWORD
        value: "rootpasswd"
      volumeMounts:
      - mountPath: /var/lib/mysql
        name: site-data
        subPath: ORG1/DIR1
    - name: php
      image: php:7.0-apache
      volumeMounts:
      - mountPath: /var/www/html
        name: site-data
        subPath: ORG1/DIR2
    volumes:
    - name: site-data
      persistentVolumeClaim:
        claimName: hpc-vinhha-test

And when I call to delete this pod, currently k8s only delete pod, and core lib not delete data of pod on persistent volume claim. So, data of PVC will become garbage and become bigger and bigger.

I want to delele all data in sub path ORG1/DIR1 and ORG1/DIR2 when pods deleted.

This is file yaml of pvc:

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"v1","kind":"PersistentVolumeClaim","metadata":{"annotations":{},"name":"efs-claim","namespace":"default"},"spec":{"accessModes":["ReadWriteMany"],"resources":{"requests":{"storage":"5Gi"}},"storageClassName":"efs-sc"}}
    pv.kubernetes.io/bind-completed: "yes"
    pv.kubernetes.io/bound-by-controller: "yes"
  creationTimestamp: "2020-07-10T04:02:51Z"
  finalizers:
  - kubernetes.io/pvc-protection
  name: efs-claim
  namespace: default
  resourceVersion: "887409"
  selfLink: /api/v1/namespaces/default/persistentvolumeclaims/efs-claim
  uid: ab66c2f7-744c-4d6f-a508-2bc90f0b1897
spec:
  accessModes:
  - ReadWriteMany
  resources:
    requests:
      storage: 5Gi
  storageClassName: efs-sc
  volumeMode: Filesystem
  volumeName: efs-pv-shared
status:
  accessModes:
  - ReadWriteMany
  capacity:
    storage: 5Gi
  phase: Bound

So, can you help me with this problem. Because I'm a newbie in k8s and aws-efs. So, I don't have much experience about it :(

Thank so much.