It's been several months since the game is over.
Mode simulation is the main pillar of the game, remove this pillar and the game will collapse.
If they remove the simulation mode, this game will no longer be an "IL-2 Sturmovik".
The game will be a Blazing Angel improved.
All the people I saw in the forum want this game just for the simulation mode (about fifty people just in
http://www.jeuxvideo.com if I take into account the forums and comments of videos)
It's the first flight simulator in console. Frankly I don't think they have removed the simulation mode (the game is finished for a long time and there aren't reason to remove it)
Delete simulation mode would be stupid.
I don't understand why you talk about deleting of the simulation mode.