Minor code improvements.

L2J_Mobius_Underground/java/com/l2jmobius/gameserver/datatables/MerchantPriceConfigTable.java

@@ -101,7 +101,7 @@ public class MerchantPriceConfigTable implements InstanceListManager
 				}
 			}
 			
-			final MerchantPriceConfig defaultMpc = this.getMerchantPriceConfig(defaultPriceConfigId);
+			final MerchantPriceConfig defaultMpc = getMerchantPriceConfig(defaultPriceConfigId);
 			if (defaultMpc == null)
 			{
 				throw new IllegalStateException("'defaultPriceConfig' points to an non-loaded priceConfig");