Make the fuchsia mojo/public repo the source of truth.

mojo/dart/packages/_mojo_for_test_only/lib/math/math_calculator.mojom.dart

 // WARNING: DO NOT EDIT. This file was generated by a program.
 // See $MOJO_SDK/tools/bindings/mojom_bindings_generator.py.
 
 library math_calculator_mojom;
 import 'dart:async';
 import 'dart:collection';
 import 'dart:convert';
 import 'dart:io';
 import 'dart:typed_data';
 import 'package:mojo/bindings.dart' as bindings;
@@ skipping 700 matching lines @@
 
 Map<String, mojom_types.UserDefinedType> getAllMojomTypeDefinitions() {
   return getRuntimeTypeInfo().typeMap;
 }
 
 var _runtimeTypeInfo;
 mojom_types.RuntimeTypeInfo  _initRuntimeTypeInfo() {
   // serializedRuntimeTypeInfo contains the bytes of the Mojo serialization of
   // a mojom_types.RuntimeTypeInfo struct describing the Mojom types in this
   // file. The string contains the base64 encoding of the gzip-compressed bytes.
-  var serializedRuntimeTypeInfo = "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";
+  var serializedRuntimeTypeInfo = "H4sIAAAJbogC/+xXTavaQBQ1sYU09sN+vnT3oBs3ffOW0pWlCIVS6KIbVxLjVCOTTJpJhP6L/lSX3bWTekfH2wwGtRIfuXAZM5kL956cc0y81jq6sN7CivfV6qAVn+tr15Z27hrOfh19GY4/DUfvIj+b33zwWZAzP+OpB+eLurZW19Pq9XCs3esBun+L9n9DfGyVxzOZrsxtR+v9K5lPZKJ2/5nbgfpE5lwmyUVKGA98Rmaczxglcx5RsswYSVK+oEEmSMQXnIg0WP9I8gkLAxLGGU2/+QEVZBLG0zCeCZJRURyXLYyDTQs3RVWE+1A4vQAcW4Crrd1va8/t5z3A2S3He6Wes10Nbxw9w/4jmfcLvBn10xIePYCez43nNeL1Cq375lY8M+HxEmb/O/fblH7PZS8l86s49/yOQb8e1h/iCcara58Gr1cyH2t4iYTHgtYHL4zToMQHlQarxKl0tfRZTg26uqoBTjqfLK0/k//027s47sPJgjTh1AEffD+dlv6PuTXzn1Pp6TnMLufW3KfR06F6cuH9oK56+t98Kt4zHm74pNy54dMxfHpzwf5sV8TJhjTh1IVePucsCxP2A+PUuaP+7MGMam5l0o2eDtNTBzzqUvz5F/reqsqnvgGf1zKf7vJpa9KNTx/Fq16NefUnAAD//3rtk/jYEQAA";
 
   // Deserialize RuntimeTypeInfo
   var bytes = BASE64.decode(serializedRuntimeTypeInfo);
   var unzippedBytes = new ZLibDecoder().convert(bytes);
   var bdata = new ByteData.view(unzippedBytes.buffer);
   var message = new bindings.Message(bdata, null, unzippedBytes.length, 0);
   _runtimeTypeInfo = mojom_types.RuntimeTypeInfo.deserialize(message);
   return _runtimeTypeInfo;
 }