remove local workspace Rollup resolution work around

[thescientist13]

Type of Change

Enhancement

Summary

When the website repo was part of the monorepo workspace, there was a need to have a work around to resolve references to @greenwood/* to the local workspace file, since it wouldn't actually be in node_modules
https://github.com/ProjectEvergreen/greenwood/blob/v0.30.1/packages/cli/src/config/rollup.config.js#L138

Details

In theory we should just be able to delete that if block and comment and all tests should continue to pass.