Reland: [Fasta] Do not emit default arguments at callsite

pkg/front_end/lib/src/fasta/kernel/kernel_library_builder.dart

Index: pkg/front_end/lib/src/fasta/kernel/kernel_library_builder.dart
diff --git a/pkg/front_end/lib/src/fasta/kernel/kernel_library_builder.dart b/pkg/front_end/lib/src/fasta/kernel/kernel_library_builder.dart
index 8c0031c4b81aa67282c039d66ff3cba7cf755dac..b675255092ade45252f24370ef4bcb4bb7c91c0b 100644
--- a/pkg/front_end/lib/src/fasta/kernel/kernel_library_builder.dart
+++ b/pkg/front_end/lib/src/fasta/kernel/kernel_library_builder.dart
@@ -337,12 +337,6 @@ class KernelLibraryBuilder
     return new KernelInvalidTypeBuilder(name, charOffset, fileUri);
   }
 
-  void addArgumentsWithMissingDefaultValues(
-      Arguments arguments, FunctionNode function) {
-    assert(partOfLibrary == null);
-    argumentsWithMissingDefaultValues.add([arguments, function]);
-  }
-
   int finishStaticInvocations() {
     CloneVisitor cloner;
     for (var list in argumentsWithMissingDefaultValues) {