chore: Remove api server param from helm

[akshaysngupta]

Since AKS is now automatically adding these environment variables to the containers, we don't need to do it anymore. These were added to resolve some connectivity issue between a container and api-server.

KUBERNETES_PORT_443_TCP_ADDR
KUBERNETES_PORT
KUBERNETES_PORT_443_TCP
KUBERNETES_SERVICE_HOST

Before this fix rolled out, we introduced apiServerAddress into the helm chart so that we can set these vars.

Example:

aksClusterConfiguration:
    apiServerAddress: <aks-api-server-address>

Issue outlined on AKS github: Azure/AKS#676

Here is an image with the new deployment yaml showing that env variables are added automatically.