chore: clean up non-existent releases helm-chart-4.4.1 (#10079)

Signed-off-by: Jintao Zhang <zhangjintao9020@gmail.com>

index.yaml

@@ -184,35 +184,6 @@ entries:
     urls:
     - https://github.com/kubernetes/ingress-nginx/releases/download/helm-chart-4.4.2/ingress-nginx-4.4.2.tgz
     version: 4.4.2
-  - annotations:
-      artifacthub.io/changes: |
-        - "ci: remove setup-helm step (#9404)"
-        - "feat(helm): Optionally use cert-manager instead admission patch (#9279)"
-        - "run helm release on main only and when the chart/value changes only (#9290)"
-        - "Update Ingress-Nginx version controller-v1.5.2"
-      artifacthub.io/prerelease: "false"
-    apiVersion: v2
-    appVersion: 1.5.2
-    created: "2022-12-29T21:36:14.623201477Z"
-    description: Ingress controller for Kubernetes using NGINX as a reverse proxy
-      and load balancer
-    digest: 9a3ef71fbb3886a5e235ce6e993e50961518027ccc56b1bb0fd7c7da8487cadf
-    home: https://github.com/kubernetes/ingress-nginx
-    icon: https://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Nginx_logo.svg/500px-Nginx_logo.svg.png
-    keywords:
-    - ingress
-    - nginx
-    kubeVersion: '>=1.20.0-0'
-    maintainers:
-    - name: rikatz
-    - name: strongjz
-    - name: tao12345666333
-    name: ingress-nginx
-    sources:
-    - https://github.com/kubernetes/ingress-nginx
-    urls:
-    - https://github.com/kubernetes/ingress-nginx/releases/download/helm-chart-4.4.1/ingress-nginx-4.4.1.tgz
-    version: 4.4.1
   - annotations:
       artifacthub.io/changes: |
         - Adding support for disabling liveness and readiness probes to the Helm chart