PrivateDnsZone removal Bug Report

[eriqua]

Description

Removal of PrivateDnsZone resources is failing when child resource VirtualNetworkLink is also deployed.
VirtualNetworkLink removal needs to happen before the PrivateDnsZone removal.
VirtualNetworkLink removal is skipped. Needs to be investigated

Steps to reproduce

1. Run the PrivateDnsZone testing pipeline
2. Check the logs, you'll get an error similar to https://github.com/Azure/ResourceModules/runs/4540554772?check_suite_focus=true

Screenshots