Remove code associated with the old "kompile" functionality.

pkg/front_end/testcases/inference/downwards_inference_yield_yield_star.dart.dartk.expect

-library test;
-import self as self;
-import "dart:core" as core;
-import "dart:async" as asy;
-
-abstract class MyStream<T extends core::Object> extends asy::Stream<self::MyStream::T> {
-  static factory •<T extends core::Object>() → dynamic
-    return null;
-}
-static method foo() → asy::Stream<core::List<core::int>> {
-  yield<dynamic>[];
-  yield throw new core::NoSuchMethodError::•(null, #MyStream, <dynamic>[], <dynamic, dynamic>{}, null);
-  yield*<dynamic>[];
-  yield* throw new core::NoSuchMethodError::•(null, #MyStream, <dynamic>[], <dynamic, dynamic>{}, null);
-}
-static method bar() → core::Iterable<core::Map<core::int, core::int>> {
-  yield<dynamic, dynamic>{};
-  yield throw new core::NoSuchMethodError::•(null, #List, <dynamic>[], <dynamic, dynamic>{}, null);
-  yield*<dynamic, dynamic>{};
-  yield* throw new core::NoSuchMethodError::•(null, #List, <dynamic>[], <dynamic, dynamic>{}, null);
-}