Remove unused import.

This import was mistakenly added in 2e3f17fa2bf97f29d82a29b6fc42ccd5c9e0f350.

Change-Id: Ie89d47d4168c84eacea9d11b4c7f5bf986f5c2d7
Reviewed-on: https://dart-review.googlesource.com/75661
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
diff --git a/pkg/analyzer/test/generated/compile_time_error_code_test.dart b/pkg/analyzer/test/generated/compile_time_error_code_test.dart
index 185f5a5..d95c092 100644
--- a/pkg/analyzer/test/generated/compile_time_error_code_test.dart
+++ b/pkg/analyzer/test/generated/compile_time_error_code_test.dart
@@ -7,7 +7,6 @@
 import 'dart:async';
 
 import 'package:analyzer/dart/analysis/declared_variables.dart';
-import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/error/error.dart';
 import 'package:analyzer/src/context/context.dart';
 import 'package:analyzer/src/error/codes.dart';