Update OWNERS file

Remove Xoogler gkasten

Test: TreeHugger
Change-Id: I1caab97d4e65642e448c7baa15110c8527a43935

OWNERS

diff --git a/OWNERS b/OWNERS
index ffd753e..5f90cef 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,2 +1 @@
 jmtrivi@google.com
-gkasten@android.com