No they absolutely did not remove scraps!!! There are items from version 1.5 that do not drop; on horde side it would be human bone chips, dwarf spines, night elf heads and gnome hairs, but they definitely did not take away the ability to upgrade your units with armor scraps, or summon the ice lord/tree boss with soldier bloods, or summon wind rider assistance with lieutenant/commander flesh.
Please do not spread misinformation about this problem! It is a HUGE problem of people not being able to loot the items they need for upgrades and summonses!!! The problem being described in the original post here is that depending on when you click to loot the bodies, sometimes the body disappears without you being able to loot it. If the enemy dies and you are actively channeling the looting ability WHILE THEY RELEASE, no loot window shows up at all. However, if you loot them BEFORE They release, or AFTER they release, all of the items that normally drop show up in the looting window, like armor scraps and bloods.