fix: Remove frameworkreference

[nickrandolph]

GitHub Issue (If applicable): #489

PR Type

What kind of change does this PR introduce?

• Bugfix

What is the current behavior?

Required frameworkreference in winui app when added

What is the new behavior?

Frameworkreference not required

PR Checklist

Please check if your PR fulfills the following requirements:

• Tested code with current supported SDKs
• Docs have been added/updated which fit documentation template. (for bug fixes / features)
• Unit Tests and/or UI Tests for the changes have been added (for bug fixes / features) (if applicable)
• Wasm UI Tests are not showing unexpected any differences. Validate PR Screenshots Compare Test Run results.
• Contains NO breaking changes
• Updated the Release Notes
• Associated with an issue (GitHub or internal)

Other information

Internal Issue (If applicable):

[github-actions]

Azure Static Web Apps: Your stage site is ready! Visit it here: https://polite-field-01aa64f0f-490.eastus2.azurestaticapps.net

[kazo0]

I believe @jeromelaban just added these lines back from here.
@jeromelaban is this needed?

[github-actions]

Azure Static Web Apps: Your stage site is ready! Visit it here: https://polite-field-01aa64f0f-490.eastus2.azurestaticapps.net

[github-actions]

Azure Static Web Apps: Your stage site is ready! Visit it here: https://polite-field-01aa64f0f-490.eastus2.azurestaticapps.net

[jeromelaban]

I added those to get the CI running when downgrading to .NET 6. If the CI passes, I don't see any issue.

[github-actions]

Azure Static Web Apps: Your stage site is ready! Visit it here: https://polite-field-01aa64f0f-490.eastus2.azurestaticapps.net

[github-actions]

Azure Static Web Apps: Your stage site is ready! Visit it here: https://polite-field-01aa64f0f-490.eastus2.azurestaticapps.net