Remove obsolete passbolt-ingress.yaml file

This file was replaced by passbolt-ingress-fixed.yaml in the Passbolt
certificate fix (DEV-382). The new ingress uses cert-manager annotations
instead of Traefik-specific TLS configuration.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/passbolt/passbolt-ingress.yaml

@@ -1,26 +0,0 @@
-apiVersion: networking.k8s.io/v1
-kind: Ingress
-metadata:
-  name: passbolt-ingress
-  namespace: passbolt
-  annotations:
-    cert-manager.io/cluster-issuer: letsencrypt-prod
-    nginx.ingress.kubernetes.io/ssl-redirect: "true"
-    nginx.ingress.kubernetes.io/proxy-body-size: "10m"
-spec:
-  ingressClassName: nginx
-  tls:
-    - hosts:
-        - passbolt.basicstack.de
-      secretName: passbolt-tls
-  rules:
-    - host: passbolt.basicstack.de
-      http:
-        paths:
-          - path: /
-            pathType: Prefix
-            backend:
-              service:
-                name: passbolt
-                port:
-                  number: 80