[HUDI-3451] Delete metadata table when the write client disables MDT (#5186)

* Add checks for metadata table init to avoid possible out-of-sync

* Revise the logic to reuse existing table config

* Revise docs and naming

Co-authored-by: yuezhang <yuezhang@freewheel.tv>
Co-authored-by: Y Ethan Guo <ethan.guoyihua@gmail.com>

hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/table/HoodieFlinkTable.java

@@ -18,7 +18,6 @@
 
 package org.apache.hudi.table;
 
-import org.apache.avro.specific.SpecificRecordBase;
 import org.apache.hudi.client.WriteStatus;
 import org.apache.hudi.client.common.HoodieFlinkEngineContext;
 import org.apache.hudi.common.data.HoodieData;
@@ -37,6 +36,8 @@ import org.apache.hudi.metadata.FlinkHoodieBackedTableMetadataWriter;
 import org.apache.hudi.metadata.HoodieTableMetadataWriter;
 import org.apache.hudi.table.action.HoodieWriteMetadata;
 
+import org.apache.avro.specific.SpecificRecordBase;
+
 import java.util.List;
 
 import static org.apache.hudi.common.data.HoodieList.getList;
@@ -107,6 +108,7 @@ public abstract class HoodieFlinkTable<T extends HoodieRecordPayload>
       return Option.of(FlinkHoodieBackedTableMetadataWriter.create(context.getHadoopConf().get(), config,
           context, actionMetadata, Option.of(triggeringInstantTimestamp)));
     } else {
+      maybeDeleteMetadataTable();
       return Option.empty();
     }
   }