discard code lines no longer in use

Author: HassanOHOsman

implement-cowsay/cow.py

@@ -1,8 +1,7 @@
 import cowsay
-import sys
 import argparse
 
-listed_animals = cowsay.char_names;
+listed_animals = cowsay.char_names
 
 parser = argparse.ArgumentParser(
     prog="cow",
@@ -18,10 +17,6 @@
 animal = args.animal
 
 
-if animal not in listed_animals:
-    print(f"Error: argument --animal: invalid choice: '{animal}'. Choose from: {', '.join(listed_animals)}")
-    exit(1)
-
 animal_says = getattr(cowsay, animal)
 
 print(animal_says(message))