[fuchsia] update owners file

Change-Id: I77dbdd394a223321a15746328080cf4d75e6eda3
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/glslang/+/792910
Reviewed-by: Josh Gargus <jjosh@google.com>
diff --git a/OWNERS b/OWNERS
index 166185a..d2a5192 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,4 +1,3 @@
 jjosh@google.com
 liyl@google.com
-cfontas@google.com