Updated Backup OWNERS.

Test: none
Bug: none

Change-Id: I33e178259019f999bd9dd8d52fcecb1af340e3a5
diff --git a/hostsidetests/backup/OWNERS b/hostsidetests/backup/OWNERS
index e0e5e22..f55cc45 100644
--- a/hostsidetests/backup/OWNERS
+++ b/hostsidetests/backup/OWNERS
@@ -2,8 +2,6 @@
 # Use this reviewer by default.
 br-framework-team+reviews@google.com
 
-alsutton@google.com
-anniemeng@google.com
-brufino@google.com
 nathch@google.com
 rthakohov@google.com
+tobiast@google.com