cc: Remove all blimp code from cc.

cc/proto/transform.proto

Index: cc/proto/transform.proto
diff --git a/cc/proto/transform.proto b/cc/proto/transform.proto
deleted file mode 100644
index eeb84a01fd0c3e6b9e1818e0a2c9fcc0c46f1dfe..0000000000000000000000000000000000000000
--- a/cc/proto/transform.proto
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-syntax = "proto2";
-
-option optimize_for = LITE_RUNTIME;
-
-package cc.proto;
-
-message Transform {
-  // If the matrix is not set, the deserializer will assume an identity
-  // transform.
-  repeated float matrix = 1 [packed = true];
-}