ci: Remove infrastructure-level items from manifest

manifest.yaml

@@ -1,10 +1,5 @@
 # Manifest for deploying to Kubernetes
 apiVersion: v1
-kind: Namespace
-metadata:
-  name: maelstrom
----
-apiVersion: v1
 kind: Service
 metadata:
   name: maelstrom
@@ -37,25 +32,3 @@ spec:
         imagePullPolicy: Always
         ports:
         - containerPort: 3000
-
----
-apiVersion: networking.k8s.io/v1beta1
-kind: Ingress
-metadata:
-  name: maelstrom-ingress
-  namespace: maelstrom
-  annotations:
-    kubernetes.io/ingress.class: nginx
-    cert-manager.io/cluster-issuer: letsencrypt
-spec:
-  tls:
-  - hosts:
-    - maelstrom.tanndev.com
-    secretName: maelstrom-tls
-  rules:
-  - host: maelstrom.tanndev.com
-    http:
-      paths:
-      - backend:
-          serviceName: maelstrom
-          servicePort: 80