Make Entity.Remove queue removal in physics callbacks

[Kefta]

See here: https://facepunch.com/showthread.php?t=1537303&p=51983032&viewfull=1#post51983032

[Bo98]

This is already covered if we get #894.

[Kefta]

Doesn't it rely on the user to change their Remove code?

[Bo98]

Yes, but if you are going to change Entity:Remove's behaviour, then what about all the other functions that people may want to call post simulation?

Entity:Remove can be changed if it's really wanted but a solution for everything else is still needed. I'm assuming you are wanting it this way so old addons don't have to be updated?

[Kefta]

I was thinking of a convenience factor, but you are correct about it maintaining old addons. I'm not arguing against a post simulation queue to be added, but this is a very specific case for Remove.

[robotboy655]

Entity.Remove always queued its removals.