Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/Console.dartdoc

-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// WARNING:
-//   This file contains documentation that is merged into the real source.
-//   Do not make code changes here.
-
-/// @domName Console
-interface Console {
-
-  /** @domName Console.memory */
-  final MemoryInfo memory;
-
-  /** @domName Console.profiles */
-  final List<ScriptProfile> profiles;
-
-  /** @domName Console.assertCondition */
-  void assertCondition(bool condition, Object arg);
-
-  /** @domName Console.count */
-  void count();
-
-  /** @domName Console.debug */
-  void debug(Object arg);
-
-  /** @domName Console.dir */
-  void dir();
-
-  /** @domName Console.dirxml */
-  void dirxml();
-
-  /** @domName Console.error */
-  void error(Object arg);
-
-  /** @domName Console.group */
-  void group(Object arg);
-
-  /** @domName Console.groupCollapsed */
-  void groupCollapsed(Object arg);
-
-  /** @domName Console.groupEnd */
-  void groupEnd();
-
-  /** @domName Console.info */
-  void info(Object arg);
-
-  /** @domName Console.log */
-  void log(Object arg);
-
-  /** @domName Console.markTimeline */
-  void markTimeline();
-
-  /** @domName Console.profile */
-  void profile(String title);
-
-  /** @domName Console.profileEnd */
-  void profileEnd(String title);
-
-  /** @domName Console.time */
-  void time(String title);
-
-  /** @domName Console.timeEnd */
-  void timeEnd(String title, Object arg);
-
-  /** @domName Console.timeStamp */
-  void timeStamp(Object arg);
-
-  /** @domName Console.trace */
-  void trace(Object arg);
-
-  /** @domName Console.warn */
-  void warn(Object arg);
-}