Removed compiler/ directory from repository

dart/compiler/java/com/google/dart/compiler/DartCompilationPhase.java

Index: dart/compiler/java/com/google/dart/compiler/DartCompilationPhase.java
diff --git a/dart/compiler/java/com/google/dart/compiler/DartCompilationPhase.java b/dart/compiler/java/com/google/dart/compiler/DartCompilationPhase.java
deleted file mode 100644
index 24a034126a028b49a93737022501f5e630702e12..0000000000000000000000000000000000000000
--- a/dart/compiler/java/com/google/dart/compiler/DartCompilationPhase.java
+++ /dev/null
@@ -1,23 +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;
-
-import com.google.dart.compiler.ast.DartUnit;
-import com.google.dart.compiler.resolver.CoreTypeProvider;
-
-/**
- * A compiler phase that processes a unit and possibly transforms it or reports
- * compilation errors.
- */
-public interface DartCompilationPhase {
-
-  /**
-   * Execute this phase on a unit.
-   *
-   * @param unit the program to process
-   * @param context context where to report error messages
-   */
-  DartUnit exec(DartUnit unit, DartCompilerContext context, CoreTypeProvider typeProvider);
-}