[FLINK-38211][table] Remove joinFilter and remame rowType

Author: gustavodemorais

flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/plan/nodes/physical/stream/StreamPhysicalMultiJoin.java

@@ -173,16 +173,12 @@ public RelWriter explainTerms(final RelWriter pw) {
                                 .collect(Collectors.joining(", ")))
                 .item("inputUniqueKeys", formatInputUniqueKeysWithFieldNames())
                 .item("joinConditions", formatJoinConditionsWithFieldNames(pw))
-                .itemIf(
-                        "joinFilter",
-                        formatExpressionWithFieldNames(joinFilter, pw),
-                        joinFilter != null)
                 .itemIf(
                         "postJoinFilter",
                         formatExpressionWithFieldNames(postJoinFilter, pw),
                         postJoinFilter != null)
                 .item("select", String.join(",", getRowType().getFieldNames()))
-                .item("outputRowType", getRowType())
+                .item("rowType", getRowType())
                 .itemIf("stateTtlHints", RelExplainUtil.hintsToString(hints), !hints.isEmpty());
     }