Remove legacy `alias` and `name` from vercel.json

[styfle]

Also curious to see if a redeployment will fix the current errors

[vercel[bot]]

@styfle is attempting to deploy a commit to the jsPerf Team on Vercel.

A member of the Team first needs to authorize it.

[vercel[bot]]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/jsperf/jsperf.com/8xcEETHcK5sDnF1C5h1714QyrrZJ
✅ Preview: https://jsperfcom-git-fork-styfle-patch-1-jsperf.vercel.app