remove unused suggestion builder

pkg/analysis_server/lib/src/services/completion/dart/local_declaration_visitor.dart

Index: pkg/analysis_server/lib/src/services/completion/dart/local_declaration_visitor.dart
diff --git a/pkg/analysis_server/lib/src/services/completion/dart/local_declaration_visitor.dart b/pkg/analysis_server/lib/src/services/completion/dart/local_declaration_visitor.dart
index 360774a906b44207f33a0387aafa5d32300402f7..964c6b46038d2c624cda48012bba9a0ab2c7848b 100644
--- a/pkg/analysis_server/lib/src/services/completion/dart/local_declaration_visitor.dart
+++ b/pkg/analysis_server/lib/src/services/completion/dart/local_declaration_visitor.dart
@@ -4,7 +4,6 @@
 
 library services.completion.dart.local.declaration.visitor;
 
-import 'package:analysis_server/src/services/completion/suggestion_builder.dart';
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/scanner.dart';
 
@@ -21,11 +20,6 @@ abstract class LocalDeclarationVisitor extends GeneralizingAstVisitor {
 
   final int offset;
 
-  /**
-   * `true` if local inherited types should be visited.
-   */
-  bool includeLocalInheritedTypes = true;
-
   LocalDeclarationVisitor(this.offset);
 
   void declaredClass(ClassDeclaration declaration);
@@ -119,12 +113,6 @@ abstract class LocalDeclarationVisitor extends GeneralizingAstVisitor {
   @override
   void visitClassDeclaration(ClassDeclaration node) {
     _visitClassDeclarationMembers(node);
-    // imported types are handled by the imported reference contributor
-    if (includeLocalInheritedTypes) {
-      visitInheritedTypes(node, localDeclaration: (ClassDeclaration classNode) {
-        _visitClassDeclarationMembers(classNode);
-      });
-    }
     visitNode(node);
   }