Move //mojo/services tracing & catalog to //services

mojo/services/tracing/public/cpp/BUILD.gn

Index: mojo/services/tracing/public/cpp/BUILD.gn
diff --git a/mojo/services/tracing/public/cpp/BUILD.gn b/mojo/services/tracing/public/cpp/BUILD.gn
deleted file mode 100644
index 74ec607fa29991d922881f31d9541dd4927abced..0000000000000000000000000000000000000000
--- a/mojo/services/tracing/public/cpp/BUILD.gn
+++ /dev/null
@@ -1,21 +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.
-
-source_set("cpp") {
-  sources = [
-    "switches.cc",
-    "switches.h",
-    "trace_provider_impl.cc",
-    "trace_provider_impl.h",
-    "tracing_impl.cc",
-    "tracing_impl.h",
-  ]
-
-  deps = [
-    "//base",
-    "//mojo/public/cpp/bindings",
-    "//mojo/services/tracing/public/interfaces",
-    "//services/shell/public/cpp",
-  ]
-}