Remove unfinished save_conversation impl

refactored.py

@@ -295,15 +295,7 @@ class CommandParser:
 
     def save_conversation(self, filename='conversation.md'):
         # TODO finish this
-        if not filename.endswith('.md'):
-            filename += '.md'
-        base, extension = os.path.splitext(filename)
-        i = 1
-        while os.path.exists(filename):
-            filename = f"{base}_{i}{extension}"
-            i += 1
-        with open(filename, 'w') as f:
-            f.write(conversation)
+        pass
 
     def handle_clear(self):
         self.assistant.history = [self.assistant.system_prompt()]