service worker: Remove some LayoutTests that are redundant with WPT tests.
This removes some LayoutTests for which there is a version in both
LayoutTests and WPT and Chrome is passing both. Also, the differences
between the versions are trivial, or WPT has more enhanced tests.
Some history: the current WPT tests were largely adapted from our
LayoutTests. We could not contribute to WPT directly because Blink
infra was not ready (especially wptserve didn't work). And now
everything is working and we have both WPT tests and LayoutTests but
they are slightly different. This is a step toward unifying them.
This shows the diff between the tests being removed:
http://pastebin.com/QabWh41g
BUG=688116
Review-Url: https://codereview.chromium.org/2695803007
Cr-Commit-Position: refs/heads/master@{#450893}
8 files changed
