Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/PerformanceTiming.dartdoc

Index: lib/html/doc/interface/PerformanceTiming.dartdoc
diff --git a/lib/html/doc/interface/PerformanceTiming.dartdoc b/lib/html/doc/interface/PerformanceTiming.dartdoc
deleted file mode 100644
index 61b2b1a497f3fb568a3d86e3227d2389f02f712b..0000000000000000000000000000000000000000
--- a/lib/html/doc/interface/PerformanceTiming.dartdoc
+++ /dev/null
@@ -1,74 +0,0 @@
-// 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 PerformanceTiming
-interface PerformanceTiming {
-
-  /** @domName PerformanceTiming.connectEnd */
-  final int connectEnd;
-
-  /** @domName PerformanceTiming.connectStart */
-  final int connectStart;
-
-  /** @domName PerformanceTiming.domComplete */
-  final int domComplete;
-
-  /** @domName PerformanceTiming.domContentLoadedEventEnd */
-  final int domContentLoadedEventEnd;
-
-  /** @domName PerformanceTiming.domContentLoadedEventStart */
-  final int domContentLoadedEventStart;
-
-  /** @domName PerformanceTiming.domInteractive */
-  final int domInteractive;
-
-  /** @domName PerformanceTiming.domLoading */
-  final int domLoading;
-
-  /** @domName PerformanceTiming.domainLookupEnd */
-  final int domainLookupEnd;
-
-  /** @domName PerformanceTiming.domainLookupStart */
-  final int domainLookupStart;
-
-  /** @domName PerformanceTiming.fetchStart */
-  final int fetchStart;
-
-  /** @domName PerformanceTiming.loadEventEnd */
-  final int loadEventEnd;
-
-  /** @domName PerformanceTiming.loadEventStart */
-  final int loadEventStart;
-
-  /** @domName PerformanceTiming.navigationStart */
-  final int navigationStart;
-
-  /** @domName PerformanceTiming.redirectEnd */
-  final int redirectEnd;
-
-  /** @domName PerformanceTiming.redirectStart */
-  final int redirectStart;
-
-  /** @domName PerformanceTiming.requestStart */
-  final int requestStart;
-
-  /** @domName PerformanceTiming.responseEnd */
-  final int responseEnd;
-
-  /** @domName PerformanceTiming.responseStart */
-  final int responseStart;
-
-  /** @domName PerformanceTiming.secureConnectionStart */
-  final int secureConnectionStart;
-
-  /** @domName PerformanceTiming.unloadEventEnd */
-  final int unloadEventEnd;
-
-  /** @domName PerformanceTiming.unloadEventStart */
-  final int unloadEventStart;
-}