lint.yml: Drop as superseded by pre-commit.yml

.github/workflows/lint.yml

@@ -1,22 +0,0 @@
-name: Lint
-
-on:
-  push:
-    branches:
-      - master
-  pull_request:
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
-      - name: Install dependencies
-        run: pip install ruff
-      - name: Lint
-        run: |
-          ruff --version
-          ruff format --check --diff .
-          ruff check --diff .