Remove the legacy ViewSystem and some other tangentially related legacy code. (#5558)

Signed-off-by: bosnichd <bosnichd@amazon.com>

Code/Legacy/CrySystem/SystemInit.cpp

@@ -78,7 +78,6 @@
 #include <ICmdLine.h>
 #include <IProcess.h>
 #include <LyShine/ILyShine.h>
-#include <HMDBus.h>
 
 #include <AzFramework/Archive/Archive.h>
 #include "XConsole.h"
@@ -88,7 +87,6 @@
 #include "SystemEventDispatcher.h"
 #include "LevelSystem/LevelSystem.h"
 #include "LevelSystem/SpawnableLevelSystem.h"
-#include "ViewSystem/ViewSystem.h"
 #include <CrySystemBus.h>
 #include <AzCore/Jobs/JobFunction.h>
 #include <AzCore/Jobs/JobManagerBus.h>
@@ -1146,12 +1144,6 @@ AZ_POP_DISABLE_WARNING
 
         InlineInitializationProcessing("CSystem::Init Level System");
 
-        //////////////////////////////////////////////////////////////////////////
-        // VIEW SYSTEM (must be created after m_pLevelSystem)
-        m_pViewSystem = new LegacyViewSystem::CViewSystem(this);
-
-        InlineInitializationProcessing("CSystem::Init View System");
-
         if (m_env.pLyShine)
         {
             m_env.pLyShine->PostInit();