Remove workaround from randomized tests

Author: lkts

test/framework/src/main/java/org/elasticsearch/logsdb/datageneration/datasource/DefaultMappingParametersHandler.java

@@ -49,11 +49,7 @@ private Supplier<Map<String, Object>> keywordMapping(
             // We only add copy_to to keywords because we get into trouble with numeric fields that are copied to dynamic fields.
             // If first copied value is numeric, dynamic field is created with numeric field type and then copy of text values fail.
             // Actual value being copied does not influence the core logic of copy_to anyway.
-            //
-            // TODO
-            // We don't use copy_to on fields that are inside an object with dynamic: strict
-            // because we'll hit https://github.com/elastic/elasticsearch/issues/113049.
-            if (request.dynamicMapping() != DynamicMapping.FORBIDDEN && ESTestCase.randomDouble() <= 0.05) {
+            if (ESTestCase.randomDouble() <= 0.05) {
                 var options = request.eligibleCopyToFields()
                     .stream()
                     .filter(f -> f.equals(request.fieldName()) == false)