Update OWNERS file

Remove Xooglers courtneygo and tobine

Test: TreeHugger
Change-Id: I0fa0d86c4dd573074263a031193e27b761b75123
diff --git a/OWNERS b/OWNERS
index 89eea21..437f6c5 100644
--- a/OWNERS
+++ b/OWNERS
@@ -2,6 +2,4 @@
 # Please update this list if you find better candidates.
 chrisforbes@google.com
 cnorthrop@google.com
-courtneygo@google.com
 ianelliott@google.com
-tobine@google.com