Migration e2e installation to helm (#5086)

test/e2e-image/Dockerfile

@@ -10,15 +10,16 @@ RUN apk add -U --no-cache \
     libc6-compat \
     openssl
 
+RUN curl -sSL https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 | bash \
+  && helm repo add stable https://kubernetes-charts.storage.googleapis.com \
+  && helm repo update
+
 COPY --from=BASE /go/bin/ginkgo /usr/local/bin/
 COPY --from=BASE /usr/local/bin/kubectl /usr/local/bin/
 
 COPY e2e.sh             /e2e.sh
-COPY cloud-generic      /cloud-generic
-COPY cluster-wide       /cluster-wide
-COPY overlay            /overlay
 COPY namespace-overlays /namespace-overlays
-RUN sed -E -i 's|^- .*deploy/cloud-generic$|- ../cloud-generic|' /overlay/kustomization.yaml
+
 COPY wait-for-nginx.sh  /
 COPY e2e.test           /