Remove unnecessary webhook script (#5493)
Remove unnecessary webhook script (#5493)

Version 0.8 migrated to a helm based installation of the automatic
sidecar injection, thus making this script irrelevant
frankbu/istio,istio/istio,geeknoid/istio,smawson/istio,smawson/istio,frankbu/istio,istio/istio,istio/istio,istio/istio,smawson/istio,geeknoid/istio,smawson/istio,frankbu/istio,geeknoid/istio,geeknoid/istio,frankbu/istio,istio/istio,smawson/istio,smawson/istio,geeknoid/istio,geeknoid/istio,frankbu/istio,frankbu/istio