Reporting: Remove persistence for now.

net/reporting/reporting_delivery_agent.cc

Index: net/reporting/reporting_delivery_agent.cc
diff --git a/net/reporting/reporting_delivery_agent.cc b/net/reporting/reporting_delivery_agent.cc
index e614aa1b166fde4abfb35c3b85317d1831517538..209ea8f60d47d975816eed3c88a8a3887b534b3a 100644
--- a/net/reporting/reporting_delivery_agent.cc
+++ b/net/reporting/reporting_delivery_agent.cc
@@ -62,11 +62,6 @@ class ReportingDeliveryAgentImpl : public ReportingDeliveryAgent,
 
   ~ReportingDeliveryAgentImpl() override { context_->RemoveObserver(this); }
 
-  void Initialize() override {
-    if (CacheHasReports())
-      StartTimer();
-  }
-
   void SetTimerForTesting(std::unique_ptr<base::Timer> timer) override {
     DCHECK(!timer_->IsRunning());
     timer_ = std::move(timer);