Remove dimitry and hhb from OWNERS.

Removing from owners to avoid confusion for users who
want to find approvers for their CLs.

Bug: n/a
Test: n/a
Change-Id: I56c02b95389c9cb559ca8791d36f9e625db57f69
diff --git a/OWNERS b/OWNERS
index e02ad9f..670f88d 100644
--- a/OWNERS
+++ b/OWNERS
@@ -2,9 +2,5 @@
 
 cferris@google.com
 danalbert@google.com
-hhb@google.com
 rprichard@google.com
 yabinc@google.com
-
-# Still the best reviewer for changes related to the dynamic linker.
-dimitry@google.com