device/fido: try again to fix OWNERS.

My last attempt (r630385) didn't work:
https://logs.chromium.org/logs/chromium/buildbucket/cr-buildbucket.appspot.com/8922068251220090064/+/steps/presubmit/0/stdout

Rather, it appears that comments may only start at the beginning of a
line. Running:
  find -name OWNERS -type f -exec grep -H '^[^#].*#' '{}' ';'

…finds only two cases of trailing comments, and both are “per-file”
directives. So I'm guessing that trailing comments in general break the
parser.

Change-Id: If22a168898859a674624af1b26b0990a88c0ef47
Reviewed-on: https://chromium-review.googlesource.com/c/1461084
Commit-Queue: Adam Langley <agl@chromium.org>
Commit-Queue: Martin Kreichgauer <martinkr@google.com>
Auto-Submit: Adam Langley <agl@chromium.org>
Reviewed-by: Martin Kreichgauer <martinkr@google.com>
Cr-Commit-Position: refs/heads/master@{#630420}

device/fido/OWNERS

@@ -5,15 +5,19 @@ kpaulhamus@chromium.org
 
 # TouchID, Windows Hello.
 martinkr@google.com
-martinkr@chromium.org # prefer google.com address
+# (Secondary email; prefer google.com address.)
+martinkr@chromium.org
 
 # Attestation and legacy U2F implementation.
 agl@chromium.org
 
 # Emeriti; for occasional reviews
-engedy@chromium.org # esp. view & frame lifetimes
-jdoerrie@chromium.org # Bluetooth
-hongjunchoi@chromium.org # CTAP2 implementation
+# esp. view & frame lifetimes
+engedy@chromium.org
+# Bluetooth
+jdoerrie@chromium.org
+# CTAP2 implementation
+hongjunchoi@chromium.org
 
 # TEAM: identity-dev@chromium.org
 # COMPONENT: Blink>WebAuthentication