Inline Login: Remove assert usages on test names

These asserts are obsolete because these tests are now using TypeScript, which will throw a compiler error if the test does not exist.

Bug: 1291526
Change-Id: Ie97102581f9ef947f4eb36bdb384b801c6ed10d9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4026610


Commit-Queue: Cole Horvitz <colehorvitz@chromium.org>
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1072412}