Remove protobuf lite for java.

third_party/protobuf/java/src/main/java/com/google/protobuf/RpcUtil.java

Index: third_party/protobuf/java/src/main/java/com/google/protobuf/RpcUtil.java
diff --git a/third_party/protobuf/java/src/main/java/com/google/protobuf/RpcUtil.java b/third_party/protobuf/java/src/main/java/com/google/protobuf/RpcUtil.java
deleted file mode 100644
index b1b959a8a0c991e166f3cc14fa1ef01f339d51b1..0000000000000000000000000000000000000000
--- a/third_party/protobuf/java/src/main/java/com/google/protobuf/RpcUtil.java
+++ /dev/null
@@ -1,135 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc.  All rights reserved.
-// http://code.google.com/p/protobuf/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package com.google.protobuf;
-
-/**
- * Grab-bag of utility functions useful when dealing with RPCs.
- *
- * @author kenton@google.com Kenton Varda
- */
-public final class RpcUtil {
-  private RpcUtil() {}
-
-  /**
-   * Take an {@code RpcCallback<Message>} and convert it to an
-   * {@code RpcCallback} accepting a specific message type.  This is always
-   * type-safe (parameter type contravariance).
-   */
-  @SuppressWarnings("unchecked")
-  public static <Type extends Message> RpcCallback<Type>
-  specializeCallback(final RpcCallback<Message> originalCallback) {
-    return (RpcCallback<Type>)originalCallback;
-    // The above cast works, but only due to technical details of the Java
-    // implementation.  A more theoretically correct -- but less efficient --
-    // implementation would be as follows:
-    //   return new RpcCallback<Type>() {
-    //     public void run(Type parameter) {
-    //       originalCallback.run(parameter);
-    //     }
-    //   };
-  }
-
-  /**
-   * Take an {@code RpcCallback} accepting a specific message type and convert
-   * it to an {@code RpcCallback<Message>}.  The generalized callback will
-   * accept any message object which has the same descriptor, and will convert
-   * it to the correct class before calling the original callback.  However,
-   * if the generalized callback is given a message with a different descriptor,
-   * an exception will be thrown.
-   */
-  public static <Type extends Message>
-  RpcCallback<Message> generalizeCallback(
-      final RpcCallback<Type> originalCallback,
-      final Class<Type> originalClass,
-      final Type defaultInstance) {
-    return new RpcCallback<Message>() {
-      public void run(final Message parameter) {
-        Type typedParameter;
-        try {
-          typedParameter = originalClass.cast(parameter);
-        } catch (ClassCastException ignored) {
-          typedParameter = copyAsType(defaultInstance, parameter);
-        }
-        originalCallback.run(typedParameter);
-      }
-    };
-  }
-
-  /**
-   * Creates a new message of type "Type" which is a copy of "source".  "source"
-   * must have the same descriptor but may be a different class (e.g.
-   * DynamicMessage).
-   */
-  @SuppressWarnings("unchecked")
-  private static <Type extends Message> Type copyAsType(
-      final Type typeDefaultInstance, final Message source) {
-    return (Type)typeDefaultInstance.newBuilderForType()
-                                    .mergeFrom(source)
-                                    .build();
-  }
-
-  /**
-   * Creates a callback which can only be called once.  This may be useful for
-   * security, when passing a callback to untrusted code:  most callbacks do
-   * not expect to be called more than once, so doing so may expose bugs if it
-   * is not prevented.
-   */
-  public static <ParameterType>
-    RpcCallback<ParameterType> newOneTimeCallback(
-      final RpcCallback<ParameterType> originalCallback) {
-    return new RpcCallback<ParameterType>() {
-      private boolean alreadyCalled = false;
-
-      public void run(final ParameterType parameter) {
-        synchronized(this) {
-          if (alreadyCalled) {
-            throw new AlreadyCalledException();
-          }
-          alreadyCalled = true;
-        }
-
-        originalCallback.run(parameter);
-      }
-    };
-  }
-
-  /**
-   * Exception thrown when a one-time callback is called more than once.
-   */
-  public static final class AlreadyCalledException extends RuntimeException {
-    private static final long serialVersionUID = 5469741279507848266L;
-
-    public AlreadyCalledException() {
-      super("This RpcCallback was already called and cannot be called " +
-            "multiple times.");
-    }
-  }
-}