[fuchsia] update owners file

Change-Id: Ib55f05dc41f9c2d3e90cf8982895391aac5bb5ed
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/rapidjson/+/792912
Reviewed-by: Corey Tabaka <eieio@google.com>
Commit-Queue: Jaeheon Yi <jaeheon@google.com>
Reviewed-by: Adam Barth <abarth@google.com>
diff --git a/OWNERS b/OWNERS
index 334dbad..09b3a19 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,3 +1,2 @@
 eieio@google.com
 brunodalbo@google.com
-cfontas@google.com