Remove the code to store and load QUIC server configs in the disk cache.

net/quic/chromium/properties_based_quic_server_info.h

Index: net/quic/chromium/properties_based_quic_server_info.h
diff --git a/net/quic/chromium/properties_based_quic_server_info.h b/net/quic/chromium/properties_based_quic_server_info.h
index 35ebb9b718d2c480f86b66f6bf7f2665ac0d604f..df85a9d816fe08d2ba38b5ac63367dd05262b6f1 100644
--- a/net/quic/chromium/properties_based_quic_server_info.h
+++ b/net/quic/chromium/properties_based_quic_server_info.h
@@ -30,14 +30,8 @@ class QUIC_EXPORT_PRIVATE PropertiesBasedQuicServerInfo
   ~PropertiesBasedQuicServerInfo() override;
 
   // QuicServerInfo implementation.
-  void Start() override;
-  int WaitForDataReady(const CompletionCallback& callback) override;
-  void ResetWaitForDataReadyCallback() override;
-  void CancelWaitForDataReadyCallback() override;
-  bool IsDataReady() override;
-  bool IsReadyToPersist() override;
+  bool Load() override;
   void Persist() override;
-  void OnExternalCacheHit() override;
   size_t EstimateMemoryUsage() const override;
 
  private:
@@ -46,22 +40,6 @@ class QUIC_EXPORT_PRIVATE PropertiesBasedQuicServerInfo
   DISALLOW_COPY_AND_ASSIGN(PropertiesBasedQuicServerInfo);
 };
 
-class QUIC_EXPORT_PRIVATE PropertiesBasedQuicServerInfoFactory
-    : public QuicServerInfoFactory {
- public:
-  explicit PropertiesBasedQuicServerInfoFactory(
-      HttpServerProperties* http_server_properties);
-  ~PropertiesBasedQuicServerInfoFactory() override;
-
-  std::unique_ptr<QuicServerInfo> GetForServer(
-      const QuicServerId& server_id) override;
-
- private:
-  HttpServerProperties* http_server_properties_;
-
-  DISALLOW_COPY_AND_ASSIGN(PropertiesBasedQuicServerInfoFactory);
-};
-
 }  // namespace net
 
 #endif  // NET_QUIC_CHROMIUM_PROPERTIES_BASED_QUIC_SERVER_INFO_H_