Update OWNERS

Remove David, mostly to prevent bugs being auto-assigned to him.

Add Nikita who for no apparent reason wasn't already here.

Test: N/A
Change-Id: Ib22dff1622780ce7cd517f26234c7d5e6810c725
diff --git a/OWNERS b/OWNERS
index e560cec..40c709f 100644
--- a/OWNERS
+++ b/OWNERS
@@ -4,7 +4,6 @@
 #
 # If you are not a member of the project please send review requests
 # to one of those listed below.
-dbrazdil@google.com
 jiyong@google.com
 smoreland@google.com
 willdeacon@google.com
@@ -13,6 +12,7 @@
 alanstokes@google.com
 aliceywang@google.com
 inseob@google.com
+ioffe@google.com
 jaewan@google.com
 jakobvukalovic@google.com
 jeffv@google.com