Delete the tracing service

components/filesystem/file_system_app.cc

Index: components/filesystem/file_system_app.cc
diff --git a/components/filesystem/file_system_app.cc b/components/filesystem/file_system_app.cc
index 06c02d215a1bb5c3dbc6d00914f14905f95883a5..f33b60d802a71bf7e20582a1dbde88e43a3f4589 100644
--- a/components/filesystem/file_system_app.cc
+++ b/components/filesystem/file_system_app.cc
@@ -43,9 +43,7 @@ FileSystemApp::FileSystemApp() : lock_table_(new LockTable) {
 
 FileSystemApp::~FileSystemApp() {}
 
-void FileSystemApp::OnStart() {
-  tracing_.Initialize(context()->connector(), context()->identity().name());
-}
+void FileSystemApp::OnStart() {}
 
 void FileSystemApp::OnBindInterface(
     const service_manager::ServiceInfo& source_info,