[20.09] .github/workflows/editorconfig.yml: remove

.github/workflows/editorconfig.yml

@@ -1,27 +0,0 @@
-name: "Checking EditorConfig"
-
-on:
-  pull_request:
-
-jobs:
-  tests:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-      with:
-        fetch-depth: 0
-    - uses: technote-space/get-diff-action@v3.1.0
-    - name: Fetch editorconfig-checker
-      if: env.GIT_DIFF
-      env:
-        ECC_VERSION: "2.1.0"
-        ECC_URL: "https://github.com/editorconfig-checker/editorconfig-checker/releases/download"
-      run: |
-        curl -sSf -O -L -C - "$ECC_URL/$ECC_VERSION/ec-linux-amd64.tar.gz" && \
-        tar xzf ec-linux-amd64.tar.gz && \
-        mv ./bin/ec-linux-amd64 ./bin/editorconfig-checker
-    - name: Checking EditorConfig
-      if: env.GIT_DIFF
-      run: |
-        ./bin/editorconfig-checker -disable-indentation \
-        ${{ env.GIT_DIFF }}