Remove more unnecessary code

Author: triceo

core/src/main/java/ai/timefold/solver/core/impl/bavet/AbstractSession.java

@@ -6,7 +6,7 @@
 import ai.timefold.solver.core.impl.bavet.uni.AbstractForEachUniNode;
 import ai.timefold.solver.core.impl.bavet.uni.AbstractForEachUniNode.LifecycleOperation;
 
-public abstract class AbstractSession implements AutoCloseable {
+public abstract class AbstractSession {
 
     private final NodeNetwork nodeNetwork;
     private final Map<Class<?>, AbstractForEachUniNode<Object>[]> insertEffectiveClassToNodeArrayMap;
@@ -63,8 +63,4 @@ public void settle() {
         nodeNetwork.settle();
     }
 
-    @Override
-    public final void close() {
-    }
-
 }

core/src/main/java/ai/timefold/solver/core/impl/move/MoveStreamsBasedMoveRepository.java

@@ -89,7 +89,6 @@ public void stepEnded(AbstractStepScope<Solution_> stepScope) {
     @Override
     public void phaseEnded(AbstractPhaseScope<Solution_> phaseScope) {
         if (moveStreamSession != null) {
-            moveStreamSession.close();
             moveStreamSession = null;
         }
         phaseScope.getScoreDirector().setMoveRepository(null);

core/src/main/java/ai/timefold/solver/core/impl/move/streams/DefaultMoveStreamSession.java

@@ -14,7 +14,7 @@
 
 @NullMarked
 public final class DefaultMoveStreamSession<Solution_>
-        implements MoveStreamSession<Solution_>, AutoCloseable {
+        implements MoveStreamSession<Solution_> {
 
     private final DatasetSession<Solution_> datasetSession;
     private final SolutionView<Solution_> solutionView;
@@ -52,8 +52,4 @@ public SolutionView<Solution_> getSolutionView() {
         return solutionView;
     }
 
-    @Override
-    public void close() {
-        datasetSession.close();
-    }
 }

core/src/main/java/ai/timefold/solver/core/impl/score/director/stream/BavetConstraintStreamScoreDirector.java

@@ -98,7 +98,6 @@ public boolean requiresFlushing() {
     public void close() {
         super.close();
         if (session != null) {
-            session.close();
             session = null;
         }
     }