Remove AddDefaultTopN rule

Author: luigidellaquila

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/optimizer/LogicalPlanOptimizer.java

@@ -10,7 +10,6 @@
 import org.elasticsearch.xpack.esql.VerificationException;
 import org.elasticsearch.xpack.esql.common.Failures;
 import org.elasticsearch.xpack.esql.core.type.DataType;
-import org.elasticsearch.xpack.esql.optimizer.rules.logical.AddDefaultTopN;
 import org.elasticsearch.xpack.esql.optimizer.rules.logical.BooleanFunctionEqualsElimination;
 import org.elasticsearch.xpack.esql.optimizer.rules.logical.BooleanSimplification;
 import org.elasticsearch.xpack.esql.optimizer.rules.logical.CombineBinaryComparisons;
@@ -116,10 +115,9 @@ protected List<Batch<LogicalPlan>> batches() {
 
     protected static List<Batch<LogicalPlan>> rules() {
         var skip = new Batch<>("Skip Compute", new SkipQueryOnLimitZero());
-        var defaultTopN = new Batch<>("Add default TopN", new AddDefaultTopN());
         var label = new Batch<>("Set as Optimized", Limiter.ONCE, new SetAsOptimized());
 
-        return asList(substitutions(), operators(), skip, cleanup(), defaultTopN, label);
+        return asList(substitutions(), operators(), skip, cleanup(), label);
     }
 
     protected static Batch<LogicalPlan> substitutions() {