USWDS - Remove unused config and dependencies

[anselmbradford]

Is your feature request related to a problem? Please describe.

The following file appears to be unused:

• config/rename-material-icons.sh

In addition to unused dependencies removed in #5832, it appears webpack-cli is also unused.

Lastly, it doesn't appear the project uses typescript, but has infrastructure to support it, such as:

• tsconfig.json.
• the typescript dependency in package.json.
• typeCheck() functions in the linter and javascript builder scripts.

Describe the solution you'd like

Unused dependencies are removed.

Describe alternatives you've considered

No response

Additional context

No response

Code of Conduct

• I agree to follow this project's Code of Conduct.
• I checked the current issues for duplicate feature requests.