##### SUMMARY
Some of the modules still return something in `ansible_facts`, even though the result in there is an empty list:
 - ~~`azure_rm_publicipaddress_info`~~
 - ~~`azure_rm_networkinterface_info`~~
 - `azure_rm_storageaccount_info`
 - `azure_rm_virtualmachineimage_info`
 - `azure_rm_virtualmachinescaleset_info`
 - `azure_rm_virtualnetwork_info`

Finally, `azure_rm_resourcegroup_info` always returns `ansible_facts` with content (which is also returned as non-`ansible_facts`).

When called as `_info` modules, these modules should not have anything in `ansible_facts` when returning.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
~~azure_rm_publicipaddress_info~~
~~azure_rm_networkinterface_info~~
azure_rm_resourcegroup_info
azure_rm_storageaccount_info
azure_rm_virtualmachineimage_info
azure_rm_virtualmachinescaleset_info
azure_rm_virtualnetwork_info

##### ANSIBLE VERSION
```paste below
2.9
```

sample: Succeeded
                    address_prefix:
                        description:
                            - The address prefix for the subnet.
                        returned: always
                        type: str
                        sample: '10.1.0.0/16'
                    network_security_group:
                        description:
                            - Existing security group ID with which to associate the subnet.
                        returned: always
                        type: str
                        sample: null
                    route_table:
                        description:
                            - The reference of the RouteTable resource.
                        returned: always
                        type: str
                        sample: null
                    service_endpoints:
                        description:
                            - An array of service endpoints.
                        returned: always
                        type: list
                        sample: [
                        {
                            "locations": [
                                "southeastasia",
                                "eastasia"
                            ],