Remove all blimp client code.

blimp/client/support/BUILD.gn

Index: blimp/client/support/BUILD.gn
diff --git a/blimp/client/support/BUILD.gn b/blimp/client/support/BUILD.gn
deleted file mode 100644
index 54ce3eff3ce8ec6e0e8421dcdfd74d1644915eab..0000000000000000000000000000000000000000
--- a/blimp/client/support/BUILD.gn
+++ /dev/null
@@ -1,11 +0,0 @@
-# Copyright 2016 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.
-
-group("support") {
-  public_deps = [
-    "//blimp/client/support/compositor",
-    "//blimp/client/support/resources",
-    "//blimp/client/support/session",
-  ]
-}