Fix

Author: Hardvan

data_structures/linked_list/merge_sort_linked_list.py

@@ -160,10 +160,6 @@ def merge_sort_linked_list(head: Node | None) -> Node | None:
     right = merge_sort_linked_list(next_to_middle)  # Sort right half
 
     # Merge sorted halves
-    if left is None:
-        return right
-    if right is None:
-        return left
     sorted_list = merge(left, right)
     return sorted_list