Clarify comment about SubresourceLoaderParams in the non-S13nServiceWorker case.

This comment seems outdated. S13nSW without NetworkService is
supported. The TODO is a bit vague about what was planned to be done.
I assume it was to merge the S13nSW without NetworkService code with
the non-S13nSW without NetworkService code, but there is not a viable
path for that, and as the code will be removed after S13nSW it's not
worth it.

Change-Id: I85097d207af340173508004249e6eebe317a2cfa
Reviewed-on: https://chromium-review.googlesource.com/1149424
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Matt Falkenhagen <falken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#577787}
1 file changed