Remove dart backend

test/dart_codegen/expect/convert/convert

Index: test/dart_codegen/expect/convert/convert
diff --git a/test/dart_codegen/expect/convert/convert b/test/dart_codegen/expect/convert/convert
deleted file mode 100644
index 7be7d48e6160a0c4f3aa5b609dbfa0314a5d0d02..0000000000000000000000000000000000000000
--- a/test/dart_codegen/expect/convert/convert
+++ /dev/null
@@ -1,17 +0,0 @@
-library dart.convert;
-import 'dart:async' as DDC$async$;
-import 'package:dev_compiler/runtime/dart_logging_runtime.dart' as DEVC$RT;
-import 'dart:async';
- import 'dart:typed_data';
-part 'ascii.dart';
- part 'byte_conversion.dart';
- part 'chunked_conversion.dart';
- part 'codec.dart';
- part 'converter.dart';
- part 'encoding.dart';
- part 'html_escape.dart';
- part 'json.dart';
- part 'latin1.dart';
- part 'line_splitter.dart';
- part 'string_conversion.dart';
- part 'utf.dart';