Update printing/OWNERS.

Change-Id: I089c6d9375ccea458aa3fab33d781fdd6031bae6
Reviewed-on: https://chromium-review.googlesource.com/647028
Reviewed-by: Vitaly Buka <vitalybuka@chromium.org>
Reviewed-by: Rebekah Potter <rbpotter@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#499121}

printing/OWNERS

@@ -1,9 +1,6 @@
 dpapad@chromium.org
-gene@chromium.org
-scottbyer@chromium.org
+rbpotter@chromium.org
 thestig@chromium.org
-vandebo@chromium.org
-vitalybuka@chromium.org
 
 per-file printing_context_android*=avayvod@chromium.org
 per-file printing_context_android*=dgn@chromium.org