[signin] Remove TODOs in MutableProfileOAuth2TokenServiceDelegateTest

Change-Id: I4355145d640484cf056bb3fabb038fc99d682b71
Reviewed-on: https://chromium-review.googlesource.com/c/1335568
Reviewed-by: Mihai Sardarescu <msarda@chromium.org>
Commit-Queue: David Roger <droger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#607960}
1 file changed