Revert "Dart2js deferred loading. Follow types of functions when calculating dependencies."

pkg/compiler/lib/src/deferred_load.dart

Index: pkg/compiler/lib/src/deferred_load.dart
diff --git a/pkg/compiler/lib/src/deferred_load.dart b/pkg/compiler/lib/src/deferred_load.dart
index b56f3860f896b79d9ea618d07c3f41a021979935..00eaf84cfec2ddc8f0635e4c5f21f92f4970a60f 100644
--- a/pkg/compiler/lib/src/deferred_load.dart
+++ b/pkg/compiler/lib/src/deferred_load.dart
@@ -38,8 +38,6 @@ import 'elements/elements.dart' show
     TypedefElement,
     VoidElement;
 
-import 'dart_types.dart';
-
 import 'util/util.dart' show
     Link, makeUnique;
 import 'util/uri_extras.dart' as uri_extras;
@@ -303,30 +301,6 @@ class DeferredLoadTask extends CompilerTask {
         addConstants(constant.value);
       }
     }
-
-    collectTypeDependencies(DartType type) {
-      if (type is FunctionType) {
-        for (DartType argumentType in type.parameterTypes) {
-          collectTypeDependencies(argumentType);
-        }
-        for (DartType argumentType in type.optionalParameterTypes) {
-          collectTypeDependencies(argumentType);
-        }
-        for (DartType argumentType in type.namedParameterTypes) {
-          collectTypeDependencies(argumentType);
-        }
-        collectTypeDependencies(type.returnType);
-      } else if (type is TypedefType) {
-        type.element.alias;
-      } else if (type is InterfaceType) {
-        elements.add(type.element);
-      }
-    }
-
-    if (element is FunctionElement) {
-      collectTypeDependencies(element.type);
-    }
-
     if (element.isClass) {
       // If we see a class, add everything its live instance members refer
       // to.  Static members are not relevant, unless we are processing