Revert of Sandbox html_viewer on Linux.

components/font_service/public/interfaces/BUILD.gn

Index: components/font_service/public/interfaces/BUILD.gn
diff --git a/components/font_service/public/interfaces/BUILD.gn b/components/font_service/public/interfaces/BUILD.gn
deleted file mode 100644
index db1a2dd888bc9b53ee134242028f9352ac995616..0000000000000000000000000000000000000000
--- a/components/font_service/public/interfaces/BUILD.gn
+++ /dev/null
@@ -1,11 +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.
-
-import("//third_party/mojo/src/mojo/public/tools/bindings/mojom.gni")
-
-mojom("interfaces") {
-  sources = [
-    "font_service.mojom",
-  ]
-}