Remove --extra-index-url (#19885)
### Description
<!-- Describe your changes. -->
### Motivation and Context
--extra-index-url is not allowed by injected Secure Supply Chain Step in
packaging pipelines.
```
> Starting Multifeed Python Security Analysis:
##[warning]tools/ci_build/github/azure-pipelines/bigmodels-ci-pipeline.yml - Found "extra-index-url". (https://aka.ms/cfs/pypi)
```
And those 2 packages can be installed from PyPI as well now.
Co-authored-by: Yi Zhang <your@email.com>
