Shingo Furuyama

I found that the tests in the local environment were not running properly, so I will make some corrections. Please wait for a while.

@BBBmau The test is failing with `Error 403: Location us-east5-a is not found or access is unauthorized.`. From what I've tried, `us-east5-a` seems to be the only region where we...

@BBBmau @bollenberger Finally, I deleted all the codes except "V5P". [This document](https://cloud.google.com/tpu/docs/reference/rest/v2/AcceleratorConfig) suggests that this PR works well.

@BBBmau Can you merge this one? I don't have the permission to merge.