Do not collect max, min and sum aggregates as they are the same as avg

[FlorianVeaux]

For realtime resources, we have always been collecting max, min and raw rollup metrics as long as the avg one despite all of those having the exact same values. Indeed in this vsphere implementation, we collect only the latest point at the finest resolution. So rollup do not come into play.

This PR prevents those extra rollup types to be collected and updates the fixture file accordingly.

Note: We could have removed all the remaining suffixes (avg, sum and latest), but users are used to see them. Also having sum at the end helps to understand the metric is a "count" (I think). Additionally, the code-change would have been much bigger.

Fixture file was updated with:

f = open('<FILENAME>', 'r')
data = json.load(f)
data = [d for d in data if d['name'].split('.')[-1] not in ('raw', 'max', 'min')]
data = sorted(data, key=lambda x: (x['name'], x.get('hostname')))
f.close()
f = open('<FILENAME>', 'w')
f.write(json.dumps(data, indent=4))

[FlorianVeaux]

Not adding changelog/Changed as this PR should be released with the PR here: #5251 already labeled changelog/Changed