update owners.

- xoogler
- elsk who does not work in update_engine any more

Test: N/A
Change-Id: I79c57d2bdb7629e11d2183ba1e1d0a84e3895ee4
diff --git a/OWNERS b/OWNERS
index 58ecfe1..1900cf4 100644
--- a/OWNERS
+++ b/OWNERS
@@ -2,9 +2,7 @@
 
 # Android et. al. maintainers:
 deymo@google.com
-elsk@google.com
 senj@google.com
-xunchang@google.com
 zhangkelvin@google.com
 
 # Chromium OS maintainers: