diff --git a/src/spellsolver.py b/src/spellsolver.py
index 0374200..77a3ce9 100644
--- a/src/spellsolver.py
+++ b/src/spellsolver.py
@@ -31,20 +31,6 @@ def process_node(
                 swaps=swaps,
             )
 
-    def process_path_aux(
-        self,
-        tile: GameTile,
-        node: TrieNode,
-        word: str,
-        path: List[GameTile],
-        swap: int,
-        letter: str,
-    ) -> Generator[ResultWord, None, None]:
-        actual_node = node.get_letter(letter)
-        if actual_node:
-            actual_word = word + letter
-            yield from self.process_node(actual_node, actual_word, path)
-            yield from self.process_path(tile, actual_node, actual_word, path, swap)
     def process_path_aux(
         self,
         tile: GameTile,
diff --git a/src/utils/iteration.py b/src/utils/iteration.py
deleted file mode 100644
index 46a66c2..0000000
--- a/src/utils/iteration.py
+++ /dev/null
@@ -1,25 +0,0 @@
-from itertools import tee
-from typing import Iterable
-
-
-def pairwise(iterable: Iterable) -> Iterable:
-    """
-    Generate pairs of consecutive elements from an iterable.
-
-    This function takes an iterable and returns an iterator that generates
-    pairs of consecutive elements from the input iterable. Each pair consists
-    of two adjacent elements. The input iterable is consumed in a single pass.
-
-    Args:
-        iterable (Iterable): An iterable sequence of elements.
-
-    Yields:
-        Iterable: An iterator that yields pairs of consecutive elements.
-
-    Example:
-        >>> list(pairwise('ABCDEFG'))
-        [('A', 'B'), ('B', 'C'), ('C', 'D'), ('D', 'E'), ('E', 'F'), ('F', 'G')]
-    """
-    a, b = tee(iterable)
-    next(b, None)
-    return zip(a, b)
diff --git a/src/utils/iteration_test.py b/src/utils/iteration_test.py
deleted file mode 100644
index d4aa46d..0000000
--- a/src/utils/iteration_test.py
+++ /dev/null
@@ -1,27 +0,0 @@
-import unittest
-from iteration import pairwise
-
-
-class TestPairwiseFunction(unittest.TestCase):
-    def test_empty_input(self):
-        result = list(pairwise([]))
-        self.assertEqual(result, [])
-
-    def test_single_element_input(self):
-        result = list(pairwise([1]))
-        self.assertEqual(result, [])
-
-    def test_normal_input(self):
-        result = list(pairwise([1, 2, 3, 4, 5]))
-        self.assertEqual(result, [(1, 2), (2, 3), (3, 4), (4, 5)])
-
-    def test_string_input(self):
-        result = list(pairwise("ABCDEFG"))
-        self.assertEqual(
-            result,
-            [("A", "B"), ("B", "C"), ("C", "D"), ("D", "E"), ("E", "F"), ("F", "G")],
-        )
-
-
-if __name__ == "__main__":
-    unittest.main()