Remove helm v2 CI test

Signed-off-by: JenTing Hsiao <[email protected]>

.github/workflows/lint-test.yaml

@@ -27,30 +27,3 @@ jobs:
         uses: helm/[email protected]
         with:
           command: install
-
-  helm2-lint-test:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-
-      - name: Fetch history
-        run: git fetch --prune --unshallow
-
-      - name: Run chart-testing (lint)
-        id: lint
-        uses: helm/[email protected] # fixed on v1.0.0-alpha.3 for helm2
-        with:
-          image: quay.io/cpanato/chart-testing:dev-v2-latest
-          command: lint
-
-      - name: Create kind cluster
-        uses: helm/[email protected]
-        # Only build a kind cluster if there are chart changes to test.
-        if: steps.lint.outputs.changed == 'true'
-
-      - name: Run chart-testing (install)
-        uses: helm/[email protected] # fixed on v1.0.0-alpha.3 for helm2
-        with:
-          image: quay.io/cpanato/chart-testing:dev-v2-latest
-          command: install