Removed backend because it wasn't used in encryption.accounts

src/encryption/accounts.py

@@ -1,7 +1,6 @@
 import os
 from typing import Self
 
-from cryptography.hazmat.backends import default_backend
 from cryptography.hazmat.primitives import hashes
 from cryptography.hazmat.primitives.ciphers.aead import ChaCha20Poly1305
 from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
@@ -22,7 +21,6 @@ class Cipher:
             length=32,
             salt=salt,
             iterations=100000,
-            backend=default_backend(),
         )
         return cls(kdf.derive(password))