Remove DartDocumentationGenerator and related flags.

compiler/java/com/google/dart/compiler/backend/doc/LinkInformation.java

Index: compiler/java/com/google/dart/compiler/backend/doc/LinkInformation.java
diff --git a/compiler/java/com/google/dart/compiler/backend/doc/LinkInformation.java b/compiler/java/com/google/dart/compiler/backend/doc/LinkInformation.java
deleted file mode 100644
index 9113a76007b36e919b90a9c6f4b711ac41205bf7..0000000000000000000000000000000000000000
--- a/compiler/java/com/google/dart/compiler/backend/doc/LinkInformation.java
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2011, 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.
-
-package com.google.dart.compiler.backend.doc;
-
-public class LinkInformation {
-  public String libName;
-  public String className;
-  public String elementName;
-  
-  public LinkInformation(String libName, String className, String elementName) {
-    this.libName = libName;
-    this.className = className;
-    this.elementName = elementName;
-  }
-  
-  @Override
-  public boolean equals(Object other) {
-    if (other instanceof LinkInformation) {
-      LinkInformation otherLink = (LinkInformation) other;
-      return libName.equals(otherLink.libName) &&
-          className.equals(otherLink.className) &&
-          elementName.equals(otherLink.elementName);
-    } else {
-      return false;
-    }
-  }
-
-  @Override
-  public int hashCode() {
-    return elementName.hashCode();
-  }
-
-  public String anchorReferenceStartTag() {
-    return "<a href='" + className + ".html#" + elementName + "'>";
-  }
-
-  public String anchorStartTag() {
-    return "<a name='" + elementName + "'>";
-  }
-}