Removed attribute and attributePower from skills, not used anymore.

src/main/java/com/l2jserver/gameserver/model/skills/Skill.java

@@ -194,8 +194,6 @@ public class Skill implements IIdentifiable
 	
 	private final boolean _isDebuff;
 	
-	private final String _attribute;
-	
 	private final boolean _isSuicideAttack;
 	private final boolean _canBeDispeled;
 	
@@ -254,8 +252,6 @@ public class Skill implements IIdentifiable
 		_isAbnormalInstant = set.getBoolean("abnormalInstant", false);
 		parseAbnormalVisualEffect(set.getString("abnormalVisualEffect", null));
 		
-		_attribute = set.getString("attribute", "");
-		
 		_stayAfterDeath = set.getBoolean("stayAfterDeath", false);
 		_stayOnSubclassChange = set.getBoolean("stayOnSubclassChange", true);
 		
@@ -1623,11 +1619,6 @@ public class Skill implements IIdentifiable
 		_refId = val;
 	}
 	
-	public String getAttributeName()
-	{
-		return _attribute;
-	}
-	
 	public boolean canBeDispeled()
 	{
 		return _canBeDispeled;