GitLab

Remove connection migration v1 tests which already have been covered in V2.

There should be no consumers for V1 as finch configuration is removed in
https://chromium-review.googlesource.com/1060285.

Bug: 843299
Change-Id: Iaa585cd6789850e9b502ec19ff570b30e774d4b4
Reviewed-on: https://chromium-review.googlesource.com/1066799Reviewed-by: Ryan Hamilton <rch@chromium.org>
Commit-Queue: Zhongyi Shi <zhongyi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#560379}