Fast deploy doesn't work on Warehouse due to use of ORIGINAL_LOGIN

- SqlPackage or DacFx Version:
**170.5.60-preview**
- .NET Framework (Windows-only) or .NET Core:
**N/A**
- Environment (local platform and source/target platforms):
**Fabric Warehouse**

**Steps to Reproduce:**

1. use 170.5.60-preview of sqlpackage
2. use "/p:LogDeployment=true","/p:EnableFastComparison=true"
3. run deployment against fabric warehouse

Error occurs
```
An unexpected failure occurred: FUNCTION 'ORIGINAL_LOGIN' is not supported..
```

**Did this occur in prior versions? If not - which version(s) did it work in?**
no

SqlPackage - expect the process to work on fabirc warehouse too.

Start by reproducing the deployment with SqlPackage 170.5.60-preview, LogDeployment=true, and EnableFastComparison=true against a Fabric Warehouse. Trace the fast-comparison deployment path that invokes ORIGINAL_LOGIN and verify that deployment completes without the unsupported-function error; no source files or tests are named in the issue.

Written by the indexing model from the issue text.