refactor: improved ContinuousRuleModifying effects:

* removed unused apply methods;
* added miss overrides of checksEventType (related to wrong event usage, see 5f2edde20c).

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

@@ -49,11 +49,6 @@ public class CantBeTargetedAllEffect extends ContinuousRuleModifyingEffectImpl {
         return new CantBeTargetedAllEffect(this);
     }
 
-    @Override
-    public boolean apply(Game game, Ability source) {
-        return true;
-    }
-
     @Override
     public boolean checksEventType(GameEvent event, Game game) {
         return event.getType() == GameEvent.EventType.TARGET;