lucifer: Update OWNERS

Remove owner no longer on the team.

BUG=None
TEST=None

Change-Id: I97a21fd05730f2fa6822d6ef5ea52438461f1de2
diff --git a/OWNERS b/OWNERS
index 6e9d9d3..5138a5b 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,4 +1,3 @@
-akeshet@chromium.org
 ayatane@chromium.org
 jkop@chromium.org
 linxinan@chromium.org