Remove unnecessary Result field from HeartbeatResponse

Change-Id: I500056f77427e6cd7204c82c7e4f06e93633b586
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1604427
Reviewed-by: Yuwei Huang <yuweih@chromium.org>
Commit-Queue: Joe Downing <joedow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#658754}
2 files changed