Remove hook for setting a provider for an EmbedderUriResolver

pkg/analyzer/lib/plugin/embedded_resolver_provider.dart

Index: pkg/analyzer/lib/plugin/embedded_resolver_provider.dart
diff --git a/pkg/analyzer/lib/plugin/embedded_resolver_provider.dart b/pkg/analyzer/lib/plugin/embedded_resolver_provider.dart
index b248e3406bd247a2da291d32df2494f2f1970cfa..217ab7fc6d9f53b6834aea153a5546a743ca6f43 100644
--- a/pkg/analyzer/lib/plugin/embedded_resolver_provider.dart
+++ b/pkg/analyzer/lib/plugin/embedded_resolver_provider.dart
@@ -2,6 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+@deprecated
 library analyzer.plugin.embedded_resolver_provider;
 
 import 'package:analyzer/file_system/file_system.dart';
@@ -12,4 +13,5 @@ import 'package:analyzer/source/embedder.dart';
  * URI's for embedded libraries within a given folder, or `null` if we should
  * fall back to the standard URI resolver.
  */
+@deprecated
 typedef EmbedderUriResolver EmbeddedResolverProvider(Folder folder);