Remove helm chart env

[longshuicy]

Revert back the env
Introduce releaseName variable and compute all the necessary services uri
Backward compatible

Test:

kubectl config use-context software-dev
helm diff upgrade --namespace clowder2 clowder2 . --values chen-clowder2-software-dev.yaml

Download chen-clowder2-software-dev.yaml in box folder: https://uofi.app.box.com/folder/205332339557?s=cz324ukkqkhw3gggdryif60zu9lqmc2w

---

kubectl config use-context clowder 
helm diff upgrade --namespace littlebeats littlebeats . --values littlebeats.yaml      

littlebeats.yaml see: https://git.ncsa.illinois.edu/kubernetes/clusters/clowder/-/merge_requests/5/diffs#2155018879c64e49902152810a2b9d92bedb24cd