Delete local-policies and invalidate cache when namespace is deleted #352
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Motivation
When namespace is deleted, broker cleans up global-policies and removes namespace-ownership node but it doesn't delete local-policies (which contains bundle-data) and and doesn't clear
NamespaceBundleFactory'scache which makes broker to keep invalid bundle data. So, it cause issue while creating same namespace again with different bundle-data.Modifications
Delete namespace policies from localZk and invalid bundle-cache from broker.
Result
It allows to delete namespace and recreate same namespace with different bundle-data.