RE: Adding a '--clean-publisher-objects' option to 'pg_createsubscriber' utility.

Dear Shubham,

I did a quick check and have a comment in drop_publication().

```
+    /* For cleanup purposes */
+    dbinfos.dbinfo->made_publication = true;
+
```

Please do not modify randomly. Currently, made_publication is set to false when
the command fails. No need to set to true here - Please follow that. Also, please
do not remove comments within the if statement.

Best regards,
Hayato Kuroda
FUJITSU LIMITED