chore: remove GitHub Actions workflow

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/lint.yml

@@ -1,28 +0,0 @@
-name: Node.js build
-
-on:
-    push:
-        branches: ["**"]
-    pull_request:
-        branches: ["**"]
-
-jobs:
-    build:
-        runs-on: ubuntu-latest
-
-        strategy:
-            matrix:
-                node-version: [20.x, 22.x]
-                # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
-
-        steps:
-            - uses: actions/checkout@v4
-            - name: Use Node.js ${{ matrix.node-version }}
-              uses: actions/setup-node@v4
-              with:
-                  node-version: ${{ matrix.node-version }}
-                  cache: "npm"
-            - run: npm ci
-            - run: npm run build --if-present
-            - run: npm run lint
-