Fixed linter issues

src/validator/create_schemas.py

@@ -2,6 +2,7 @@
 with validations listed in phase 1 and phase 2."""
 
 import pandas as pd
+from checks import SBLCheck
 from pandera import DataFrameSchema
 from pandera.errors import SchemaErrors
 from phase_validations import get_phase_1_and_2_validations_for_lei

src/validator/main.py

@@ -9,12 +9,8 @@
 
 import pandas as pd
 from create_schemas import (
-    get_phase_1_schema_for_lei,
-    get_phase_2_schema_for_lei,
-    print_schema_errors,
     validate_phases_by_lei,
 )
-from pandera.errors import SchemaErrors
 
 
 def csv_to_df(path: str) -> pd.DataFrame: