Chore: Remove deprecated apis (#4780)

* chore: remove deprecated AWSHttpMethodHelper

* chore: remove deprecated AWSResult.type

* chore: remove deprecated StateMachineEvent.cast()

* chore: remove deprecated ModelAssociation.targetName

Author: khatruong2009

packages/amplify_core/lib/src/state_machine/event.dart

@@ -19,10 +19,6 @@ abstract base class StateMachineEvent<EventType extends Object,
   /// The event's discrete type, expressed as an enum.
   EventType get type;
 
-  /// Casts this to an event of type [E].
-  @Deprecated('Use pattern matching instead')
-  E cast<E extends StateMachineEvent<EventType, StateType>>() => this as E;
-
   /// Checks the precondition, given [currentState].
   ///
   /// Returns a [PreconditionException] if the check fails, otherwise `null`.

packages/amplify_core/lib/src/types/models/model_association.dart

@@ -15,37 +15,26 @@ class ModelAssociation with AWSEquatable<ModelAssociation>, AWSSerializable {
 
   const ModelAssociation({
     required this.associationType,
-    @Deprecated(
-      'Please use the latest version of Amplify CLI to regenerate models',
-    )
-    this.targetName,
     this.targetNames,
     this.associatedName,
     this.associatedType,
   });
-  final ModelAssociationEnum associationType;
 
-  @Deprecated(
-    'Please use the latest version of Amplify CLI to regenerate models',
-  )
-  final String? targetName; // used in belongsTo
+  final ModelAssociationEnum associationType;
   final List<String>? targetNames; // used in belongsTo
   final String? associatedName; // used in hasMany/hasOne
   final String? associatedType;
 
   @override
   List<Object?> get props => [
         associationType,
-        // ignore: deprecated_member_use_from_same_package
-        targetName,
         targetNames,
         associatedName,
         associatedType,
       ];
 
   ModelAssociation copyWith({
     ModelAssociationEnum? associationType,
-    String? targetName,
     List<String>? targetNames,
     String? associatedName,
     String? associatedType,
@@ -61,8 +50,6 @@ class ModelAssociation with AWSEquatable<ModelAssociation>, AWSSerializable {
   Map<String, dynamic> toMap() {
     final map = {
       'associationType': associationType.name,
-      // ignore: deprecated_member_use_from_same_package
-      'targetName': targetName,
       'targetNames': targetNames,
       'associatedName': associatedName,
       'associatedType': associatedType,

packages/amplify_core/lib/src/types/models/model_field_definition.dart

@@ -167,9 +167,6 @@ class ModelFieldDefinition {
           ModelFieldType(ModelFieldTypeEnum.model, ofModelName: ofModelName),
       association: ModelAssociation(
         associationType: ModelAssociationEnum.BelongsTo,
-        // Allow support for old schemas
-        // ignore: deprecated_member_use_from_same_package
-        targetName: targetName,
         targetNames: targetNames,
         associatedName: associatedName,
         associatedType: associatedType,

packages/amplify_datastore_plugin_interface/test/amplify_modelschema_test.dart

@@ -93,9 +93,8 @@ void main() {
             isRequired: false,
             isArray: false,
             association: ModelAssociation(
-                associationType: ModelAssociationEnum.BelongsTo,
-                // ignore: deprecated_member_use
-                targetName: "postID")));
+              associationType: ModelAssociationEnum.BelongsTo,
+            )));
 
     expect(
         commentSchema.fields!["content"],
@@ -150,9 +149,8 @@ void main() {
             isRequired: false,
             isArray: false,
             association: ModelAssociation(
-                associationType: ModelAssociationEnum.BelongsTo,
-                // ignore: deprecated_member_use
-                targetName: "blogID")));
+              associationType: ModelAssociationEnum.BelongsTo,
+            )));
   });
 
   test('PostAuthComplex codegen model generates modelschema with proper fields',

packages/api/amplify_api_dart/lib/src/graphql/factories/graphql_request_factory.dart

@@ -86,11 +86,7 @@ class GraphQLRequestFactory {
         // deserializing response because model will use ID nested in `parentSelectionSet`.
         // However, including the ID in selection set allows subscriptions that
         // filter by these ID to be triggered by these mutations.
-        var belongsToKeys = belongsTo.association?.targetNames;
-        if (belongsToKeys == null &&
-            belongsTo.association?.targetName != null) {
-          belongsToKeys = [belongsTo.association!.targetName as String];
-        }
+        final belongsToKeys = belongsTo.association?.targetNames;
         if (belongsToKeys != null) {
           fields.addAll(belongsToKeys);
         }
@@ -295,8 +291,7 @@ class GraphQLRequestFactory {
     // e.g. { 'name': { 'eq': 'foo }}
     if (queryPredicate is QueryPredicateOperation) {
       final association = schema.fields?[queryPredicate.field]?.association;
-      final associatedTargetName =
-          association?.targetNames?.first ?? association?.targetName;
+      final associatedTargetName = association?.targetNames?.first;
       var fieldName = queryPredicate.field;
       if (queryPredicate.field ==
           '${_lowerCaseFirstCharacter(schema.name)}.$_defaultIdFieldName') {
@@ -388,13 +383,11 @@ class GraphQLRequestFactory {
       // Traverse parent schema to get expected JSON strings and remove from JSON.
       // A parent with complex identifier may have multiple keys.
       var belongsToKeys = belongsTo.association?.targetNames;
-      final legacyTargetName =
-          belongsTo.association?.targetName; // pre-CPK codegen
-      if (belongsToKeys == null && legacyTargetName == null) {
+      if (belongsToKeys == null) {
         // no way to resolve key to write to JSON
         continue;
       }
-      belongsToKeys = belongsToKeys ?? [legacyTargetName as String];
+      belongsToKeys = belongsToKeys;
       var i = 0; // needed to track corresponding index field name
       for (final belongsToKey in belongsToKeys) {
         final parentIdFieldName =