fix minor errors

leylines/.flake8

@@ -0,0 +1,2 @@
+[flake8]
+max-line-length = 100

leylines/leylines/__init__.py

@@ -1,5 +1,5 @@
 import binascii
-from typing import TypeVar, List, Tuple, Optional
+from typing import Optional
 
 from pyroute2 import IPRoute, WireGuard
 

leylines/leylines/database.py

@@ -1,6 +1,5 @@
 import binascii
 import ipaddress
-import secrets
 import sqlite3
 from typing import Iterable, List, NamedTuple, Optional, Set
 
@@ -134,6 +133,5 @@ class Database:
         self.conn.commit()
 
     def remove_node_resource(self, id: int, resource: str) -> None:
-        self.conn.execute("DELETE FROM node_resources WHERE node=? and resource=?",
-                     (id, resource))
+        self.conn.execute("DELETE FROM node_resources WHERE node=? and resource=?", (id, resource))
         self.conn.commit()