fix: Made bots roll in a more reasonable time on group loots. (#1857)

# Description

This PR changes the way loot rolls are being evaluated.

It puts a maximum priority on the loot action so it does not hang for so
long.

src/PlayerbotAI.cpp

@@ -1384,9 +1384,6 @@ void PlayerbotAI::DoNextAction(bool min)
     else if (bot->isAFK())
         bot->ToggleAFK();
 
-    Group* group = bot->GetGroup();
-    PlayerbotAI* masterBotAI = nullptr;
-
     if (master && master->IsInWorld())
     {
         float distance = sServerFacade->GetDistance2d(bot, master);