Remove I3DEngine CryCommon Interface (#567)

Delete:

- I3DEngine
- Missions
- Time of day
- GameEffectsSystem Gem
- ImageProcessing Gem
- SVOGI Gem
- Various other things that don't do anything now that the legacy renderer has been removed.

Code/CryEngine/CrySystem/ViewSystem/ViewSystem.cpp

@@ -533,11 +533,6 @@ void CViewSystem::BeginCutScene(IAnimSequence* pSeq, [[maybe_unused]] unsigned l
 {
     m_cutsceneCount++;
 
-    if (m_cutsceneCount == 1)
-    {
-        gEnv->p3DEngine->ResetPostEffects();
-    }
-
     VS_CALL_LISTENERS(OnBeginCutScene(pSeq, bResetFX));
 }
 
@@ -546,11 +541,6 @@ void CViewSystem::EndCutScene(IAnimSequence* pSeq, [[maybe_unused]] unsigned lon
 {
     m_cutsceneCount -= (m_cutsceneCount > 0);
 
-    if (m_cutsceneCount == 0)
-    {
-        gEnv->p3DEngine->ResetPostEffects();
-    }
-
     ClearCutsceneViews();
 
     VS_CALL_LISTENERS(OnEndCutScene(pSeq));