101-data-factory-blob-to-sql-copy/azuredeploy.json cleanup script broken

Ln 204

```
"sqlWriterCleanupScript": "$$Text.Format('DELETE FROM {0}', 'emp')"
```

Looks like the table name "emp" is hard-coded instead of reading the table name from the parameter.

Open 101-data-factory-blob-to-sql-copy/azuredeploy.json around line 204 and inspect the parameter that supplies the table name. Compare it with the hard-coded "emp" value in sqlWriterCleanupScript, then validate that the cleanup script uses the parameter-driven table name.

Written by the indexing model from the issue text.