Remove BUILD_WITH_CONTAINER=1 from UPDATING-CHARTS.md (#22466)
Remove BUILD_WITH_CONTAINER=1 from UPDATING-CHARTS.md (#22466)

It's the default now.
smawson/istio,smawson/istio,smawson/istio,istio/istio,smawson/istio,smawson/istio,smawson/istio,istio/istio,istio/istio,istio/istio,istio/istio