Quota: Ship Quota usage details by default.

This change removes the feature flag that guards quota usage details and will thus enable the feature by default.

Intent to Ship: https://groups.google.com/a/chromium.org/d/topic/blink-dev/lq83adC8QRo/discussion

Bug: 904000
Change-Id: I729d807dcbe1861b7ae38296c2db96a42f0791a1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1570533
Auto-Submit: Jarryd Goodman <jarrydg@chromium.org>
Commit-Queue: Victor Costan <pwnall@chromium.org>
Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Reviewed-by: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652461}
3 files changed