Remove GarbageCollected support from the bindings

sky/engine/bindings/tests/idls/TestDictionary.idl

Index: sky/engine/bindings/tests/idls/TestDictionary.idl
diff --git a/sky/engine/bindings/tests/idls/TestDictionary.idl b/sky/engine/bindings/tests/idls/TestDictionary.idl
index a05f0b8432d75cb00a12a716e604feae1b2401cb..10eff727905f584c60fd5600d83d7707edb7d598 100644
--- a/sky/engine/bindings/tests/idls/TestDictionary.idl
+++ b/sky/engine/bindings/tests/idls/TestDictionary.idl
@@ -2,7 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 [
-    GarbageCollected,
 ] dictionary TestDictionary {
     boolean booleanMember;
     long longMember = 1;
@@ -11,10 +10,6 @@
     double? doubleOrNullMember = null;
     DOMString? stringOrNullMember = "default string value";
     TestInterface? testInterfaceOrNullMember;
-    TestInterfaceGarbageCollected testInterfaceGarbageCollectedMember;
-    TestInterfaceGarbageCollected? testInterfaceGarbageCollectedOrNullMember;
-    TestInterfaceWillBeGarbageCollected testInterfaceWillBeGarbageCollectedMember;
-    TestInterfaceWillBeGarbageCollected? testInterfaceWillBeGarbageCollectedOrNullMember;
     DOMString[] stringArrayMember;
     sequence<DOMString> stringSequenceMember;
 };