• Make sure you've installed the latest version using instructions in the wiki

Output from azd version
Run azd version and copy and paste the output here:

azd version 1.7.0 (commit 49d6adc2efb178083f61822e6b4715258560803d)

Describe the bug
When deploying an app to AKS hosts via the new Helm Chart repo/release support in AZD, I feel that the deployment process should not attempt to deploy vanilla K8s manifests unless explicitly configured to do so.

To Reproduce

• Configure a service with host set to aks and add a valid helm repository and release.
• Add a manifests folder in the root of repo and add any valid or invalid k8s manifest
• AZD will run the helm install command then attempt to run manifests in the manifests directory

Expected behavior
If a user configures the service to deploy via helm repo, that should be it. Once the helmDeployed variable has been set to true, no other deployments should occur IMO unless explicitly set to deploy from kustomize or manifests.

Environment
Information on your environment:
* Language name and version
* IDE and version : [e.g. Visual Studio 16.3]

Additional context
Add any other context about the problem here.