Remove duplicate code snippet in angular docs

[larrybolt]

Summary of change

For the angular docs there's a duplicate code snippet, looking at the code it's being reimported under a different name.

Checklist

• Algolia search needs to be updated? (If there is a new sub docs project, then yes)
• Sitemap needs to be updated? (If there is a new sub docs project, then yes)
• Checked for broken links? (Run cd v3 && npm run build)
• Changes required to the demo apps corresponding to the docs?

[vercel]

@larrybolt is attempting to deploy a commit to the SuperTokens Team on Vercel.

A member of the Team first needs to authorize it.

[larrybolt]

Also the Suggest Edits button on the docs page is broken, but that's a bit out of scope for this PR.