cc: Remove all blimp code from cc.

cc/proto/skrrect.proto

Index: cc/proto/skrrect.proto
diff --git a/cc/proto/skrrect.proto b/cc/proto/skrrect.proto
deleted file mode 100644
index 28a8be46ef5b7380fa73dd9529fdaf0c8978111d..0000000000000000000000000000000000000000
--- a/cc/proto/skrrect.proto
+++ /dev/null
@@ -1,20 +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";
-
-import "pointf.proto";
-import "rectf.proto";
-
-option optimize_for = LITE_RUNTIME;
-
-package cc.proto;
-
-message SkRRect {
-  optional cc.proto.RectF rect = 1;
-  optional cc.proto.PointF radii_upper_left = 2;
-  optional cc.proto.PointF radii_upper_right = 3;
-  optional cc.proto.PointF radii_lower_right = 4;
-  optional cc.proto.PointF radii_lower_left = 5;
-}