Remove lint action

.github/workflows/linter.yml

@@ -1,34 +0,0 @@
-name: Linter
-
-on:
-  push:
-    branches:
-      - dev
-    paths:
-      - "**/*.go"
-      - ".github/workflows/linter.yml"
-  pull_request:
-    types: [ opened, synchronize, reopened ]
-    paths:
-      - "**/*.go"
-      - ".github/workflows/linter.yml"
-
-jobs:
-  lint:
-    if: github.repository == 'sagernet/sing'
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Get latest go version
-        id: version
-        run: |
-          echo ::set-output name=go_version::$(curl -s https://raw.githubusercontent.com/actions/go-versions/main/versions-manifest.json | grep -oE '"version": "[0-9]{1}.[0-9]{1,}(.[0-9]{1,})?"' | head -1 | cut -d':' -f2 | sed 's/ //g; s/"//g')
-      - name: Setup Go
-        uses: actions/setup-go@v2
-        with:
-          go-version: ${{ steps.version.outputs.go_version }}
-      - name: golangci-lint
-        uses: golangci/golangci-lint-action@v3
-        with:
-          version: latest