[Signin][Mice] Remove openAndroidAccountCreationScreen

This CL removes openAndroidAccountCreationScreen from
AccountManagementScreenHelper as this flow is almost never triggered
(see UMA link in the bug).

Bug: 938554
Change-Id: Id323846f45a4677cb164f92c6fb6f0498a20eb11
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1504015
Auto-Submit: Boris Sazonov <bsazonov@chromium.org>
Commit-Queue: David Roger <droger@chromium.org>
Reviewed-by: David Roger <droger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#638053}
1 file changed