Usage server metrics section shown to users without access to the API

[winterhazel]

ISSUE TYPE

• Bug Report

COMPONENT NAME

UI

CLOUDSTACK VERSION

4.20.0.0

CONFIGURATION

N/A

OS / ENVIRONMENT

N/A

SUMMARY

STEPS TO REPRODUCE

In the Usage UI, the metrics section is shown to users that do not have access to the listUsageServerMetrics API

Open the Usage UI in a user that does not have access to `listUsageServerMetrics`

EXPECTED RESULTS

Section is hidden

ACTUAL RESULTS

Section is shown with null values

[bernardodemarco]

Closing this ticket since it was fixed by #10000.