SAE: Remove dead code in FFC pwd-value derivation

The local bits variable is set to prime_len * 8 and consequently bits %
8 cannot be anything else than 0.

Signed-off-by: Jouni Malinen <j@w1.fi>

src/common/sae.c

@@ -321,8 +321,6 @@ static int sae_test_pwd_seed_ffc(struct sae_data *sae, const u8 *pwd_seed,
 	sha256_prf_bits(pwd_seed, SHA256_MAC_LEN, "SAE Hunting and Pecking",
 			sae->tmp->dh->prime, sae->tmp->prime_len, pwd_value,
 			bits);
-	if (bits % 8)
-		buf_shift_right(pwd_value, sizeof(pwd_value), 8 - bits % 8);
 	wpa_hexdump_key(MSG_DEBUG, "SAE: pwd-value", pwd_value,
 			sae->tmp->prime_len);