GitLab

This category was not useful. It's adding a trace event for each
top-level post-task, which is about doubling the size of a trace.

Let remove it.

R=oysteine@chromium.org

Change-Id: I271f5314179e7ae6299835c36a0f92a6506eae08
Reviewed-on: https://chromium-review.googlesource.com/c/1301838Reviewed-by: Eric Seckler <eseckler@chromium.org>
Reviewed-by: oysteine <oysteine@chromium.org>
Commit-Queue: Etienne Bergeron <etienneb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603163}