Revert of Mojo interface/service for Leak Detector on remote process

chrome/renderer/leak_detector/BUILD.gn

Index: chrome/renderer/leak_detector/BUILD.gn
diff --git a/chrome/renderer/leak_detector/BUILD.gn b/chrome/renderer/leak_detector/BUILD.gn
deleted file mode 100644
index 4735609a594c7c4e8438f64c65c92b798f30fa35..0000000000000000000000000000000000000000
--- a/chrome/renderer/leak_detector/BUILD.gn
+++ /dev/null
@@ -1,18 +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.
-
-if (is_chromeos) {
-  # GYP version: chrome/chrome_renderer.gypi:chrome_renderer_leak_detector_sources
-  source_set("leak_detector") {
-    sources = [
-      "leak_detector_remote_client.cc",
-      "leak_detector_remote_client.h",
-    ]
-    deps = [
-      "//components/metrics/leak_detector:interfaces",
-      "//components/metrics/leak_detector:leak_detector",
-      "//components/metrics/proto:proto",
-    ]
-  }
-}