Remove code associated with the old "kompile" functionality.

pkg/front_end/tool/fasta_perf.dart

Index: pkg/front_end/tool/fasta_perf.dart
diff --git a/pkg/front_end/tool/fasta_perf.dart b/pkg/front_end/tool/fasta_perf.dart
index 04174936ede1bb05386b2f61b174d7bded2c0651..d8d4147c081260844cff1e7971d473e0f80c36bf 100644
--- a/pkg/front_end/tool/fasta_perf.dart
+++ b/pkg/front_end/tool/fasta_perf.dart
@@ -194,8 +194,7 @@ parseFull(Uri uri, List<int> source) {
 // Note: AstBuilder doesn't build compilation-units or classes, only method
 // bodies. So this listener is not feature complete.
 class _PartialAstBuilder extends AstBuilder {
-  _PartialAstBuilder(Uri uri)
-      : super(null, null, null, null, null, true, true, uri);
+  _PartialAstBuilder(Uri uri) : super(null, null, null, null, true, uri);
 
   // Note: this method converts the body to kernel, so we skip that here.
   @override