Revert "Blob constructor"

lib/dom/idl/dart/dart.idl

 
 // This file introduces / supplements and forces Dart declarations.
 
 module default {
   FileList implements sequence<File>;
   HTMLCollection implements sequence<Node>;
   MediaList implements sequence<DOMString>;
   NamedNodeMap implements sequence<Node>;
   NodeList implements sequence<Node>;
   StyleSheetList implements sequence<StyleSheet>;
@@ skipping 237 matching lines @@
     [DartName=getObject] IDBRequest get(in IDBKeyRange key);
   };
 
   interface EntrySync {
     // Native implementation is declared to return EntrySync.
     [Suppressed] DirectoryEntrySync getParent();
     EntrySync getParent();
   };
 };
 
-
-module html {
-  [Supplemental,
-   CustomConstructor,
-   Constructor(in Array blobParts,
-               [Optional] in DOMString type, [Optional] in DOMString endings)
-   ]
-  interface Blob {
-  };
-};
-
 module html {
   [Supplemental, Callback] // Add missing Callback attribute.
   interface VoidCallback {
   };
 };
 
 module svg {
     interface SVGNumber {
       [StrictTypeChecking, Custom] attribute double value;
     };
 }