Removal of Tekton downstream tests (#2654)

.github/workflows/tekton-downstream.yaml

@@ -1,76 +0,0 @@
-# Copyright 2021 The Knative Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-name: Downstream Tekton
-
-on:
-  pull_request:
-    branches: [ 'main' ]
-
-jobs:
-  downstream-tekton:
-    name: Unit Test
-
-    strategy:
-      fail-fast: false # Keep running if one leg fails.
-      matrix:
-        repo: 
-          - tektoncd/pipeline
-          - tektoncd/chains
-          - tektoncd/triggers
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Set up Go 1.18.x
-      uses: actions/setup-go@v3
-      with:
-        go-version: 1.18.x
-
-    - name: Install Dependencies
-      run: |
-        go install github.com/google/go-licenses@latest
-
-    - name: Checkout Upstream
-      uses: actions/checkout@v3
-      with:
-        fetch-depth: 0
-        path: upstream
-
-    - name: Merge upstream
-      if: github.event_name == 'pull_request'
-      shell: bash
-      working-directory: upstream
-      run: |
-         if ! git config user.name > /dev/null; then
-           git config user.name "Knative Action"
-         fi
-         if ! git config user.email > /dev/null; then
-           git config user.email "action@knative.dev"
-         fi
-         git remote add upstream https://github.com/${{ github.repository }}.git
-         git fetch upstream ${{ github.base_ref }}
-         git pull --no-rebase --no-commit upstream ${{ github.base_ref }}
-
-    - name: Checkout Downstream
-      uses: actions/checkout@v3
-      with:
-        repository: ${{ matrix.repo }}
-        path: downstream
-
-    - name: Test Downstream
-      uses: knative/actions/go/downstream-test@main
-      with:
-        upstream-path: upstream
-        downstream-path: downstream