Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/WebGLCompressedTextureS3TC.dartdoc

Index: lib/html/doc/interface/WebGLCompressedTextureS3TC.dartdoc
diff --git a/lib/html/doc/interface/WebGLCompressedTextureS3TC.dartdoc b/lib/html/doc/interface/WebGLCompressedTextureS3TC.dartdoc
deleted file mode 100644
index 41edf76c20339b8346e0a1383fef2bc9c47a622b..0000000000000000000000000000000000000000
--- a/lib/html/doc/interface/WebGLCompressedTextureS3TC.dartdoc
+++ /dev/null
@@ -1,19 +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 WebGLCompressedTextureS3TC
-interface WebGLCompressedTextureS3TC {
-
-  static final int COMPRESSED_RGBA_S3TC_DXT1_EXT = 0x83F1;
-
-  static final int COMPRESSED_RGBA_S3TC_DXT3_EXT = 0x83F2;
-
-  static final int COMPRESSED_RGBA_S3TC_DXT5_EXT = 0x83F3;
-
-  static final int COMPRESSED_RGB_S3TC_DXT1_EXT = 0x83F0;
-}