Core/SAI: don't reset event phase when npc evades/resets.

The scripts themselves should take care of that.

src/server/game/AI/SmartScripts/SmartScript.cpp

@@ -65,7 +65,6 @@ SmartScript::~SmartScript()
 
 void SmartScript::OnReset()
 {
-    SetPhase(0);
     ResetBaseObject();
     for (SmartAIEventList::iterator i = mEvents.begin(); i != mEvents.end(); ++i)
     {