remove update changelog ci check

.github/workflows/check-updated-changelog.yml

@@ -1,16 +0,0 @@
-name: Check if the CHANGELOG.md has been updated
-
-on: [pull_request]
-
-jobs:
-  check:
-    name: Test on ${{ matrix.os }}
-    if: ${{ !contains(github.event.pull_request.labels.*.name, 'ignore-changelog') }}
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-    - name: Checking the CHANGELOG.md has been updated in this PR
-      run: |
-        set -e
-        git fetch origin ${{ github.base_ref }}
-        git diff --name-only origin/${{ github.base_ref }} | grep -q CHANGELOG.md