Delete the tracing service

components/leveldb/BUILD.gn

 # 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.
 
 import("//services/catalog/public/tools/catalog.gni")
 import("//services/service_manager/public/cpp/service.gni")
 import("//services/service_manager/public/service_manifest.gni")
 import("//services/service_manager/public/tools/test/service_test.gni")
 import("//testing/test.gni")
 
@@ skipping 30 matching lines @@
     "main.cc",
   ]
 
   deps = [
     ":lib",
     "//components/leveldb/public/interfaces",
     "//mojo/common",
     "//mojo/public/cpp/bindings",
     "//mojo/public/cpp/system",
     "//services/service_manager/public/cpp",
-    "//services/tracing/public/cpp",
   ]
 }
 
 service_manifest("manifest") {
   name = "leveldb"
   source = "manifest.json"
 }
 
 service_test("leveldb_service_unittests") {
   sources = [
@@ skipping 27 matching lines @@
   source = "test_manifest.json"
 }
 
 catalog("leveldb_service_unittests_catalog") {
   embedded_services = [ ":test_manifest" ]
   standalone_services = [
     ":manifest",
     "//components/filesystem:manifest",
   ]
 }