fix: try to fix github actions errors

.github/workflows/ci.yaml

@@ -7,24 +7,6 @@ on:
     branches: [main]
 
 jobs:
-  lint:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Set up Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: "3.10"
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install -r requirements.txt
-          pip install flake8
-      - name: Run linting
-        run: |
-          flake8 .
-          black --check .
-
   format:
     runs-on: ubuntu-latest
     steps:

notes/middleware.py

@@ -1,4 +1,3 @@
-from django.http import HttpResponseForbidden, HttpResponseNotFound
 from django.shortcuts import render
 from django_ratelimit.exceptions import Ratelimited