Remove fast/html/imports/import-in-iframe-dynamic.html

Remove fast/html/imports/import-in-iframe-dynamic.html

This test is too flaky to be useful:

http://test-results.appspot.com/dashboards/flakiness_dashboard.html#group=%40ToT%20Blink&tests=fast%2Fhtml%2Fimports%2Fimport-in-iframe-dynamic.html

TBR=morrita@chromium.org

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=157906

[commit-bot: I haz the power, 2013-09-16 21:16:57]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/abarth@chromium.org/24126006/1

[commit-bot: I haz the power, 2013-09-16 21:32:50]

Retried try job too often on win_blink_rel for step(s) webkit_lint,
webkit_python_tests, webkit_tests, webkit_unit_tests, weborigin_unittests,
wtf_unittests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_blink_...

[commit-bot: I haz the power, 2013-09-17 16:42:08]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/abarth@chromium.org/24126006/1

[commit-bot: I haz the power, 2013-09-17 17:16:08]

Change committed as 157906