[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-spark-client/src/main/java/org/apache/hudi/table/HoodieSparkTable.java

@@ -122,6 +122,8 @@ public abstract class HoodieSparkTable<T extends HoodieRecordPayload>
       } catch (IOException e) {
         throw new HoodieMetadataException("Checking existence of metadata table failed", e);
       }
+    } else {
+      maybeDeleteMetadataTable();
     }
 
     return Option.empty();