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.

Gems/Maestro/Code/Source/Components/SequenceComponent.cpp

@@ -47,7 +47,6 @@
 #include <Cinematics/CommentNode.h>
 #include <Cinematics/CVarNode.h>
 #include <Cinematics/ScriptVarNode.h>
-#include <Cinematics/AnimEnvironmentNode.h>
 #include <Cinematics/AnimPostFXNode.h>
 #include <Cinematics/EventNode.h>
 #include <Cinematics/LayerNode.h>
@@ -177,7 +176,6 @@ namespace Maestro
         CCommentNode::Reflect(context);
         CAnimCVarNode::Reflect(context);
         CAnimScriptVarNode::Reflect(context);
-        CAnimEnvironmentNode::Reflect(context);
         CAnimNodeGroup::Reflect(context);
         CAnimPostFXNode::Reflect(context);
         CAnimEventNode::Reflect(context);