[go_router] removes DebugGoRouteInformation (#2713)

diff --git a/packages/go_router/CHANGELOG.md b/packages/go_router/CHANGELOG.md
index 2549c4d..49da632 100644
--- a/packages/go_router/CHANGELOG.md
+++ b/packages/go_router/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 5.1.1
+
+- Removes DebugGoRouteInformation.
+
 ## 5.1.0
 
 - Removes urlPathStrategy completely, which should have been done in v5.0.0 but some code remained mistakenly.
diff --git a/packages/go_router/lib/src/information_provider.dart b/packages/go_router/lib/src/information_provider.dart
index 207ec45..7d8ee4f 100644
--- a/packages/go_router/lib/src/information_provider.dart
+++ b/packages/go_router/lib/src/information_provider.dart
@@ -5,7 +5,6 @@
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter/widgets.dart';
-import 'parser.dart';
 
 /// The [RouteInformationProvider] created by go_router.
 class GoRouteInformationProvider extends RouteInformationProvider
@@ -44,10 +43,7 @@
   }
 
   @override
-  RouteInformation get value => DebugGoRouteInformation(
-        location: _value.location,
-        state: _value.state,
-      );
+  RouteInformation get value => _value;
   RouteInformation _value;
 
   set value(RouteInformation other) {
@@ -110,10 +106,3 @@
     return SynchronousFuture<bool>(true);
   }
 }
-
-/// A debug class that is used for asserting the [GoRouteInformationProvider] is
-/// in use with the [GoRouteInformationParser].
-class DebugGoRouteInformation extends RouteInformation {
-  /// Creates a [DebugGoRouteInformation].
-  const DebugGoRouteInformation({super.location, super.state});
-}
diff --git a/packages/go_router/lib/src/parser.dart b/packages/go_router/lib/src/parser.dart
index 7c7d1de..61a89b8 100644
--- a/packages/go_router/lib/src/parser.dart
+++ b/packages/go_router/lib/src/parser.dart
@@ -53,17 +53,6 @@
     RouteInformation routeInformation,
     BuildContext context,
   ) {
-    assert(() {
-      if (debugRequireGoRouteInformationProvider) {
-        assert(
-          routeInformation is DebugGoRouteInformation,
-          'This GoRouteInformationParser needs to be used with '
-          'GoRouteInformationProvider, did you forget to pass in '
-          'GoRouter.routeInformationProvider to the Router constructor?',
-        );
-      }
-      return true;
-    }());
     late final RouteMatchList initialMatches;
     try {
       initialMatches = matcher.findMatch(routeInformation.location!,
diff --git a/packages/go_router/lib/src/router.dart b/packages/go_router/lib/src/router.dart
index 69ecf41..cc16088 100644
--- a/packages/go_router/lib/src/router.dart
+++ b/packages/go_router/lib/src/router.dart
@@ -186,7 +186,7 @@
     }());
     _routeInformationParser
         .parseRouteInformationWithDependencies(
-      DebugGoRouteInformation(location: location, state: extra),
+      RouteInformation(location: location, state: extra),
       // TODO(chunhtai): avoid accessing the context directly through global key.
       // https://github.com/flutter/flutter/issues/99112
       _routerDelegate.navigatorKey.currentContext!,
@@ -218,7 +218,7 @@
   void replace(String location, {Object? extra}) {
     routeInformationParser
         .parseRouteInformationWithDependencies(
-      DebugGoRouteInformation(location: location, state: extra),
+      RouteInformation(location: location, state: extra),
       // TODO(chunhtai): avoid accessing the context directly through global key.
       // https://github.com/flutter/flutter/issues/99112
       _routerDelegate.navigatorKey.currentContext!,
diff --git a/packages/go_router/pubspec.yaml b/packages/go_router/pubspec.yaml
index e0a7c08..f2c4705 100644
--- a/packages/go_router/pubspec.yaml
+++ b/packages/go_router/pubspec.yaml
@@ -1,7 +1,7 @@
 name: go_router
 description: A declarative router for Flutter based on Navigation 2 supporting
   deep linking, data-driven routes and more
-version: 5.1.0
+version: 5.1.1
 repository: https://github.com/flutter/packages/tree/main/packages/go_router
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+go_router%22
 
diff --git a/packages/go_router/test/parser_test.dart b/packages/go_router/test/parser_test.dart
index 0165466..6e3c0c6 100644
--- a/packages/go_router/test/parser_test.dart
+++ b/packages/go_router/test/parser_test.dart
@@ -6,7 +6,6 @@
 import 'package:flutter_test/flutter_test.dart';
 import 'package:go_router/go_router.dart';
 import 'package:go_router/src/configuration.dart';
-import 'package:go_router/src/information_provider.dart';
 import 'package:go_router/src/match.dart';
 import 'package:go_router/src/matching.dart';
 import 'package:go_router/src/parser.dart';
@@ -54,7 +53,7 @@
 
     RouteMatchList matchesObj =
         await parser.parseRouteInformationWithDependencies(
-            const DebugGoRouteInformation(location: '/'), context);
+            const RouteInformation(location: '/'), context);
     List<RouteMatch> matches = matchesObj.matches;
     expect(matches.length, 1);
     expect(matches[0].queryParams.isEmpty, isTrue);
@@ -65,8 +64,7 @@
 
     final Object extra = Object();
     matchesObj = await parser.parseRouteInformationWithDependencies(
-        DebugGoRouteInformation(location: '/abc?def=ghi', state: extra),
-        context);
+        RouteInformation(location: '/abc?def=ghi', state: extra), context);
     matches = matchesObj.matches;
     expect(matches.length, 2);
     expect(matches[0].queryParams.length, 1);
@@ -194,7 +192,7 @@
 
     final RouteMatchList matchesObj =
         await parser.parseRouteInformationWithDependencies(
-            const DebugGoRouteInformation(location: '/def'), context);
+            const RouteInformation(location: '/def'), context);
     final List<RouteMatch> matches = matchesObj.matches;
     expect(matches.length, 1);
     expect(matches[0].queryParams.isEmpty, isTrue);
@@ -229,8 +227,7 @@
     final BuildContext context = tester.element(find.byType(Router<Object>));
     final RouteMatchList matchesObj =
         await parser.parseRouteInformationWithDependencies(
-            const DebugGoRouteInformation(location: '/123/family/456'),
-            context);
+            const RouteInformation(location: '/123/family/456'), context);
     final List<RouteMatch> matches = matchesObj.matches;
 
     expect(matches.length, 2);
@@ -278,7 +275,7 @@
     final BuildContext context = tester.element(find.byType(Router<Object>));
     final RouteMatchList matchesObj =
         await parser.parseRouteInformationWithDependencies(
-            const DebugGoRouteInformation(location: '/random/uri'), context);
+            const RouteInformation(location: '/random/uri'), context);
     final List<RouteMatch> matches = matchesObj.matches;
 
     expect(matches.length, 2);
@@ -319,7 +316,7 @@
     final BuildContext context = tester.element(find.byType(Router<Object>));
     final RouteMatchList matchesObj =
         await parser.parseRouteInformationWithDependencies(
-            const DebugGoRouteInformation(location: '/redirect'), context);
+            const RouteInformation(location: '/redirect'), context);
     final List<RouteMatch> matches = matchesObj.matches;
 
     expect(matches.length, 2);
@@ -349,8 +346,7 @@
     final BuildContext context = tester.element(find.byType(Router<Object>));
     expect(() async {
       await parser.parseRouteInformationWithDependencies(
-          const DebugGoRouteInformation(location: '::Not valid URI::'),
-          context);
+          const RouteInformation(location: '::Not valid URI::'), context);
     }, throwsA(isA<FormatException>()));
   });
 
@@ -373,7 +369,7 @@
     final BuildContext context = tester.element(find.byType(Router<Object>));
     final RouteMatchList matchesObj =
         await parser.parseRouteInformationWithDependencies(
-            const DebugGoRouteInformation(location: '/abd'), context);
+            const RouteInformation(location: '/abd'), context);
     final List<RouteMatch> matches = matchesObj.matches;
 
     expect(matches, hasLength(1));
@@ -417,7 +413,7 @@
     final BuildContext context = tester.element(find.byType(Router<Object>));
     final RouteMatchList matchesObj =
         await parser.parseRouteInformationWithDependencies(
-            const DebugGoRouteInformation(location: '/a'), context);
+            const RouteInformation(location: '/a'), context);
     final List<RouteMatch> matches = matchesObj.matches;
 
     expect(matches, hasLength(2));