test: Remove unecessary semicolons from macro invocations in service_worker.

Bug: 925652
Change-Id: Ie6e2144bd2d9037b0055213838177ce18311443d
Reviewed-on: https://chromium-review.googlesource.com/c/1475316
Commit-Queue: Matt Falkenhagen <falken@chromium.org>
Reviewed-by: Matt Falkenhagen <falken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#633174}
3 files changed