Should have handled username updating code in the command, didn't need to create new functions for the command.

classes/table.py

@@ -162,24 +162,3 @@ class Table:
             str: string of json representation of Table
         """
         return json.dumps(self.to_dict(), indent=4)
-
-    def update_username(self, old_username: str, new_username: str) -> bool:
-        """
-        Calls Category update_username function for each category. Returns true if a category
-        was updated to inform if the table message needs rewritten.
-
-        Args:
-            old_username (str): Username to replace. Sent to Category function
-            new_username (str): Username to replace with. Sent to Category function
-
-        Returns:
-            bool: True if category was updated and requires message update
-        """
-
-        ret_val: bool = False
-
-        for category in self.categories:
-            if category.update_username(old_username, new_username):
-                ret_val = True
-
-        return ret_val