Remove gaillard@ from debugstore OWNERS

Change-Id: Ia21c7bb1296dd03af0e08f614a597d166307c69a
diff --git a/libs/debugstore/OWNERS b/libs/debugstore/OWNERS
index 428a1a2..c8e22b7 100644
--- a/libs/debugstore/OWNERS
+++ b/libs/debugstore/OWNERS
@@ -1,3 +1,2 @@
 benmiles@google.com
-gaillard@google.com
 mohamadmahmoud@google.com