smb/server: remove useless assignment of 'file_present' in smb2_open()

The variable is already true here.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/smb/server/smb2pdu.c

@@ -3096,7 +3096,6 @@ int smb2_open(struct ksmbd_work *work)
 			goto err_out;
 		}
 
-		file_present = true;
 		idmap = mnt_idmap(path.mnt);
 	} else {
 		if (rc != -ENOENT)