Delete ancient, unused HTTP docs

[michaelsproul]

Proposed Changes

Delete an old http.md file from the book which isn't referenced from anywhere.

[chong-he]

LGTM.

The content of the file is already covered in: https://lighthouse-book.sigmaprime.io/api-bn.html so it is good to remove this file

[michaelsproul]

@Mergifyio queue

[mergify]

queue

🛑 The pull request has been removed from the queue default

Pull request #5281 has been dequeued by a dequeue command.

You can take a look at Queue: Embarked in merge queue check runs for more details.

In case of a failure due to a flaky test, you should first retrigger the CI.
Then, re-embark the pull request into the merge queue by posting the comment
@mergifyio refresh on the pull request.

[michaelsproul]

@Mergifyio dequeue

[mergify]

dequeue

✅ The pull request has been removed from the queue default

[michaelsproul]

@Mergifyio requeue

[mergify]

requeue

✅ This pull request will be re-embarked automatically

The followup queue command will be automatically executed to re-embark the pull request

[mergify]

queue

✅ The pull request has been merged automatically

The pull request has been merged automatically at de6ede1