Removes unused 'normalized' field in many AST nodes.

compiler/java/com/google/dart/compiler/ast/DartPropertyAccess.java

Index: compiler/java/com/google/dart/compiler/ast/DartPropertyAccess.java
diff --git a/compiler/java/com/google/dart/compiler/ast/DartPropertyAccess.java b/compiler/java/com/google/dart/compiler/ast/DartPropertyAccess.java
index fddc51ca456036332ba5831f6cfa4095b25819fa..c3f665695c340f196c2be90aed38dbb1e27abc23 100644
--- a/compiler/java/com/google/dart/compiler/ast/DartPropertyAccess.java
+++ b/compiler/java/com/google/dart/compiler/ast/DartPropertyAccess.java
@@ -7,7 +7,6 @@ package com.google.dart.compiler.ast;
 import com.google.dart.compiler.common.Symbol;
 import com.google.dart.compiler.resolver.Element;
 import com.google.dart.compiler.type.Type;
-import com.google.dart.compiler.type.Types;
 
 /**
  * Represents a Dart property access expression (a.b).
@@ -16,7 +15,6 @@ public class DartPropertyAccess extends DartExpression implements ElementReferen
 
   private DartNode qualifier;
   private DartIdentifier name;
-  private DartExpression normalizedNode = this;
   private Element referencedElement;
   private Type type;
 
@@ -55,16 +53,6 @@ public class DartPropertyAccess extends DartExpression implements ElementReferen
     return name.getTargetSymbol();
   }
 
-  public void setNormalizedNode(DartExpression normalizedNode) {
-    normalizedNode.setSourceInfo(this);
-    this.normalizedNode = normalizedNode;
-  }
-
-  @Override
-  public DartExpression getNormalizedNode() {
-    return normalizedNode;
-  }
-
   @Override
   public void setType(Type type) {
     this.type = type;