Make tracing work in service manager

services/service_manager/standalone/tracer.cc

Index: services/service_manager/standalone/tracer.cc
diff --git a/services/service_manager/standalone/tracer.cc b/services/service_manager/standalone/tracer.cc
index 0fa74a33fba5cfee5f4850ffdac0817ccf915109..20fd888e4b45e375d4865c753528cb085bcb6194 100644
--- a/services/service_manager/standalone/tracer.cc
+++ b/services/service_manager/standalone/tracer.cc
@@ -64,10 +64,6 @@ void Tracer::StopAndFlushToFile() {
     StopTracingAndFlushToDisk();
 }
 
-void Tracer::ConnectToProvider(tracing::mojom::ProviderRequest request) {
-  provider_.Bind(std::move(request));
-}
-
 void Tracer::StopTracingAndFlushToDisk() {
   tracing_ = false;
   trace_file_ = fopen(trace_filename_.c_str(), "w+");