[scenic] Update Dart SDK OWNERS

Even though it is not under //sdk, this is part of Scenic's SDK surface
and deserves to be tightly controlled.

Tested: No behavior changed
Change-Id: I94af468b19a2c2ef7821283e16c66779f0d10986
diff --git a/public/dart/fuchsia_scenic/OWNERS b/public/dart/fuchsia_scenic/OWNERS
index c845e33..1453a19 100644
--- a/public/dart/fuchsia_scenic/OWNERS
+++ b/public/dart/fuchsia_scenic/OWNERS
@@ -1,7 +1,2 @@
-amott@google.com
-adamgousetis@google.com
 dworsham@google.com
-jaeheon@google.com
-jjosh@google.com
 mikejurka@google.com
-*
diff --git a/public/dart/fuchsia_scenic_flutter/OWNERS b/public/dart/fuchsia_scenic_flutter/OWNERS
index c845e33..b358c291 100644
--- a/public/dart/fuchsia_scenic_flutter/OWNERS
+++ b/public/dart/fuchsia_scenic_flutter/OWNERS
@@ -1,7 +1,4 @@
 amott@google.com
-adamgousetis@google.com
 dworsham@google.com
 jaeheon@google.com
-jjosh@google.com
 mikejurka@google.com
-*