free null cleanup finale

Don't check for NULL before calling OPENSSL_free

Reviewed-by: Richard Levitte <levitte@openssl.org>

apps/passwd.c

diff --git a/apps/passwd.c b/apps/passwd.c
index c529792..8dd8542 100644
--- a/apps/passwd.c
+++ b/apps/passwd.c
@@ -284,10 +284,8 @@
 
  end:
     ERR_print_errors(bio_err);
-    if (salt_malloc)
-        OPENSSL_free(salt_malloc);
-    if (passwd_malloc)
-        OPENSSL_free(passwd_malloc);
+    OPENSSL_free(salt_malloc);
+    OPENSSL_free(passwd_malloc);
     BIO_free(in);
     return (ret);
 }