Remove legacy serialization and QPropertyTree (#684)

Remove:
- CryCommon/CryExtension/*
- CryCommon/Serialization/*
- Sandbox/Plugins/EditorCommon/QPropertyTree/*
- All related CryCommon interfaces
- All CrySystem implementations
- Various related Editor classes

Code/CryEngine/CryCommon/Mocks/IConsoleMock.h

@@ -13,7 +13,6 @@
 #define CRYINCLUDE_CRYCOMMON_ICONSOLEMOCK_H
 #pragma once
 
-#include <IRemoteCommand.h>
 #include <IConsole.h>
 #include <AzTest/AzTest.h>
 

Code/CryEngine/CryCommon/Mocks/ISystemMock.h

@@ -164,8 +164,6 @@ public:
         XmlNodeRef(const char*, bool));
     MOCK_METHOD0(GetXmlUtils,
         IXmlUtils * ());
-    MOCK_CONST_METHOD0(GetArchiveHost,
-        Serialization::IArchiveHost * ());
     MOCK_METHOD1(SetViewCamera,
         void(CCamera & Camera));
     MOCK_METHOD0(GetViewCamera,
@@ -223,8 +221,6 @@ public:
         CPNoise3 * ());
     MOCK_METHOD0(GetUpdateCounter,
         uint64());
-    MOCK_CONST_METHOD0(GetCryFactoryRegistry,
-        ICryFactoryRegistry * ());
     MOCK_METHOD1(RegisterErrorObserver,
         bool(IErrorObserver * errorObserver));
     MOCK_METHOD1(UnregisterErrorObserver,
@@ -287,10 +283,6 @@ public:
         bool());
     MOCK_CONST_METHOD0(GetImageHandler,
         const IImageHandler * ());
-    MOCK_METHOD3(InitializeEngineModule,
-        bool(const char* dllName, const char* moduleClassName, const SSystemInitParams&initParams));
-    MOCK_METHOD2(UnloadEngineModule,
-        bool(const char* dllName, const char* moduleClassName));
     MOCK_METHOD0(GetRootWindowMessageHandler,
         void*());
     MOCK_METHOD1(RegisterWindowMessageHandler,