Remove all blimp network code.

blimp/net/common.cc

Index: blimp/net/common.cc
diff --git a/blimp/net/common.cc b/blimp/net/common.cc
deleted file mode 100644
index 6f7577bd0ff192545c5d5687af267590619b5c64..0000000000000000000000000000000000000000
--- a/blimp/net/common.cc
+++ /dev/null
@@ -1,12 +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.
-
-#include "blimp/net/common.h"
-
-namespace blimp {
-
-const size_t kMaxPacketPayloadSizeBytes = 20 * 1024 * 1024;  // 20MB
-const size_t kPacketHeaderSizeBytes = 4;
-
-}  // namespace blimp