Promote Jesse to OWNER status.

BUG=none
TEST=none
R=asvitkine@chromium.org, jwd@chromium.org

Review URL: https://codereview.chromium.org/541933002

Cr-Commit-Position: refs/heads/master@{#293466}

tools/metrics/OWNERS

@@ -3,8 +3,5 @@ set noparent
 asvitkine@chromium.org
 isherman@chromium.org
 jar@chromium.org
+jwd@chromium.org
 mpearson@chromium.org
-
-# Owners-in-training:
-# jwd@chromium.org
-