Description of problem:
While using a compute profile with no data disk (Azure adds an OS disk by default, so everything we add to a compute profile is considered as a data disk) Satellite keeps adding a data disk with 0Gb size. Provisioning fails while calling Azure API because it doesn't accept 0 size.

Version-Release number of selected component (if applicable):
6.8

How reproducible:
100%

Steps to Reproduce:
1. Remove all storage disk in a compute profile for Azure
2. Add a new host in Satellite
3. the VM tab will have a new data disk with 0 size.
4. If you click provision then it will fail at some point.

Actual results:
Error message while provisioning

Expected results:
If no disk specified in a compute profile then Satellite shouldn't add a data disk.

Additional info:

QE Tracker for https://issues.redhat.com/browse/SAT-23990
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1908601