Core/Spells: Add a base for brand new proc system, this is a WIP and doesn't affect currently working code.

src/server/scripts/EasternKingdoms/ScarletMonastery/boss_headless_horseman.cpp

@@ -605,7 +605,6 @@ public:
                     DoCast(me, SPELL_BODY_REGEN, true);
                     DoCast(Head, SPELL_FLYING_HEAD, true);
                     DoCast(me, SPELL_CONFUSE, false);                     //test
-                    done_by->ProcDamageAndSpell(me, PROC_FLAG_KILL, PROC_FLAG_KILLED, PROC_EX_NONE, 0);
                     whirlwind = urand(4000, 8000);
                     regen = 0;
                 }