Remove unused print_matrix function

divide_and_conquer/strassen_matrix_multiplication.py

@@ -67,11 +67,6 @@ def matrix_dimensions(matrix: list) -> tuple[int, int]:
     return len(matrix), len(matrix[0])
 
 
-def print_matrix(matrix: list) -> None:
-    for i in range(len(matrix)):
-        print(matrix[i])
-
-
 def actual_strassen(matrix_a: list, matrix_b: list) -> list:
     """
     Recursive function to calculate the product of two matrices, using the Strassen