[🔥AUDIT🔥] Remove version of ncc we don't use (#85)

🖍 _This is an audit!_ 🖍

## Summary:
We already use `@vercel/ncc`, we don't need this global install of a deprecated thing that recommends moving to `@vercel/ncc`.

Issue: FEI-5545

## Test plan:
Let this workflow run and see that it just works without the deprecation notice.

Author: somewhatabstract

Auditors: #frontend-infra-web

Required Reviewers:

Approved By:

Checks: ⌛ gerald, ⌛ lint_and_unit, ⌛ autofix, ⌛ build_index

Pull Request URL: #85

Author: somewhatabstract

.github/workflows/build.yml

@@ -17,8 +17,6 @@ jobs:
       - name: Setup Node.js, install deps
         uses: ./.github/actions/setup
 
-      - run: sudo npm i -g @zeit/ncc
-
       - name: Build dist folder
         run: yarn run build