Update configure_index index for new API

[jhamon]

Problem

The shape of the configure_index shape has changed, so we need to pass different stuff.

Solution

• Construct new request body
• Add minimal integration test. I just want to see the request succeed for now. The time needed for changes to take effect is variable, and I'm in a bit of a rush. So I don't want to do a bunch of polling for status updates in my test to verify the server actually did the correct thing.
• Delete some other legacy tests in integ/ that have been disabled for a while now.

Type of Change

• Bug fix (non-breaking change which fixes an issue)

Test Plan

New test added.