remove used code.

app/coordinators/art_coordinator.py

@@ -42,4 +42,3 @@ def update_art_data(arguments):
              
     except Exception:
         print("ERROR: Unable to update Art data. Exiting program.")
-    return 0

app/main.py

@@ -1,5 +1,3 @@
-#!/usr/bin/python3
-
 from services import parser_services
 from coordinators import art_coordinator