Update sliding_window.py

Removed whitespaces

greedy_methods/sliding_window.py

@@ -32,16 +32,12 @@ def sliding_window(input_string: str) -> int:
         if char in char_index_map and char_index_map[char] >= left:
             # Move the left pointer to avoid repeating characters
             left = char_index_map[char] + 1
-
         # Update the latest index of the character
         char_index_map[char] = right
-
         # Calculate the current length of the window
         max_len = max(max_len, right - left + 1)
-
     return max_len
 
-
 if __name__ == "__main__":
     import doctest