Remove virtual tests for launched features.

Since ServiceWorkerStaticRouter and
ServiceWorkerStaticRouterNotConditionEnabled have been launched,
we do not need to have a VirtualTestSuite for them.

Since only the timing info API change is behind the flag,
this CL converts the VirtualTestSuite for it.

Bug: 327566698, 41492364
Change-Id: Ice0e18a005e3b0104d3c135690faf9a9fa893711
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5599983


Commit-Queue: Yoshisato Yanagisawa <yyanagisawa@chromium.org>
Reviewed-by: Kent Tamura <tkent@chromium.org>
Reviewed-by: Shunya Shishido <sisidovski@chromium.org>
Reviewed-by: Minoru Chikamune <chikamune@chromium.org>
Reviewed-by: Keita Suzuki <suzukikeita@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1311058}