"Yes I did. Shot and edited. Of course you were not permitted to see it my friend."
The scene in question takes place near the end of Suicide Squad. The main villain Enchantress has taken control of Amanda Waller just as the members of the squad arrive on the scene. That is when Joker emerges carrying the triggers to the bombs encased in each member's neck, and orders Harley to betray the squad and join him at the side of Enchantress.
In the theatrical cut of the movie,