Assume you have an object with action "AbortAction" that has an
AbortCall="RemoveObject", or an abort call that removes the object.

Then, removing the object while it has "AbortAction" will remove it
twice, reducing the Def->Count by 2, while only one object was removed.

This does not do very much, but if you have only one object of that type
and later check for object count after you create a new one, then
creating the new object increases the Def->Count from -1 to 0 and the
new object is not found by Find_ID(), even though it exists.

This solves the problem that adding a new status introduced.

These were necessary before, because the object could be deleted in each
callback. Now we make sure that the function runs without the object
being deleted a second time, so the callbacks could be removed.

With the less bloated code the recently introduced function
FinishRemoval became unnecessary.