make flake 8 happy

Author: bendhouseart

reproschema/cli.py

@@ -305,6 +305,4 @@ def reproschema2fhir(reproschema_questionnaire, output):
 
 
 if __name__ == "__main__":
-    import sys
-
     main(prog_name="reproschema")

reproschema/models/model.py

@@ -1,7 +1,5 @@
 from __future__ import annotations
 
-import re
-import sys
 from datetime import date, datetime
 from decimal import Decimal
 from enum import Enum