Remove unnecessary HTTPRoute in cafe example (#208)

The cafe route with a rule for "/" routed traffic to a non-existing service. 
This commit removes the cafe route.

Author: pleshakov

examples/cafe-example/cafe-routes.yaml

@@ -1,20 +1,5 @@
 apiVersion: gateway.networking.k8s.io/v1beta1
 kind: HTTPRoute
-metadata:
-  name: cafe
-spec:
-  parentRefs:
-  - name: gateway
-    sectionName: http
-  hostnames:
-  - "cafe.example.com"
-  rules:
-  - backendRefs:
-    - name: main
-      port: 80
----
-apiVersion: gateway.networking.k8s.io/v1beta1
-kind: HTTPRoute
 metadata:
   name: coffee
 spec: