Revert "Added missing fields to many copy constructors. (#8957)" (#8999)

This reverts commit 82708e4273.

Some of these (AI related result in bloated memory usage, needs more investigation).

Mage/src/main/java/mage/abilities/effects/common/ExileCardsFromTopOfLibraryTargetEffect.java

@@ -17,6 +17,7 @@ import mage.util.CardUtil;
 public class ExileCardsFromTopOfLibraryTargetEffect extends OneShotEffect {
 
     int amount;
+    String targetName;
 
     public ExileCardsFromTopOfLibraryTargetEffect(int amount) {
         this(amount, null);