[daggy-u] Removed unnecessary import from extra credit lesson in Dags…

…ter Essentials

docs/dagster-university/pages/dagster-essentials/extra-credit/asset-metadata-as-markdown.md

@@ -132,7 +132,7 @@ In Lesson 9, you created the `adhoc_request` asset. During materialization, the
 At this point, the code for the `adhoc_request` asset should look like this:
 
 ```python
-from dagster import Config, asset, MaterializeResult, MetadataValue, get_dagster_logger
+from dagster import Config, asset, MaterializeResult, MetadataValue
 from dagster_duckdb import DuckDBResource
 
 import plotly.express as px