Revert of Build FreeType with HarfBuzz support

third_party/harfbuzz-ng/harfbuzz.gni

Index: third_party/harfbuzz-ng/harfbuzz.gni
diff --git a/third_party/harfbuzz-ng/harfbuzz.gni b/third_party/harfbuzz-ng/harfbuzz.gni
deleted file mode 100644
index a152b255e474c823d310c11e16b0e684d88353e9..0000000000000000000000000000000000000000
--- a/third_party/harfbuzz-ng/harfbuzz.gni
+++ /dev/null
@@ -1,12 +0,0 @@
-# Copyright 2017 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.
-
-declare_args() {
-  # Blink uses a cutting-edge version of Harfbuzz; most Linux distros do not
-  # contain a new enough version of the code to work correctly. However,
-  # ChromeOS chroots (i.e, real ChromeOS builds for devices) do contain a
-  # new enough version of the library, and so this variable exists so that
-  # ChromeOS can build against the system lib and keep binary sizes smaller.
-  use_system_harfbuzz = false
-}