Move "style in HTML imports" removal target.

M65 is already branched, and we have to put off at least
2 milestones before the removal.

Bug: 523952

Change-Id: I1aa3950a07bbf12720e7aed8d94f3f6e3e380d2e
Reviewed-on: https://chromium-review.googlesource.com/921002
Commit-Queue: Takayoshi Kochi <kochi@chromium.org>
Reviewed-by: Kent Tamura <tkent@chromium.org>
Cr-Commit-Position: refs/heads/master@{#537183}
11 files changed