Update OWNERS file of CellBroadcast

Bug: 255463114
Test: NA
Change-Id: I3221700b598aeebd8cf4e6674d07944e5a3d5c07
diff --git a/OWNERS b/OWNERS
index 6af84c7..9873a1f 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,15 +1,7 @@
-amitmahajan@google.com
-breadley@google.com
-fionaxu@google.com
-jackyu@google.com
 rgreenwalt@google.com
-tgunn@google.com
-shuoq@google.com
-refuhoo@google.com
-sarahchin@google.com
-xiaotonj@google.com
 huiwang@google.com
-jayachandranc@google.com
-chinmayd@google.com
 amruthr@google.com
-sasindran@google.com
+hyeinyu@google.com
+youngtaecha@google.com
+schie@google.com
+jackyu@google.com