remove version nb checks

.github/workflows/qc_checks.yaml

@@ -25,23 +25,6 @@ env:
 
 
 jobs:
-
-  check_version:
-    name: version number
-    runs-on: ubuntu-latest
-    if: ${{ github.event_name == 'pull_request' }}
-
-    steps:
-      - name: Checkout Code
-        uses: actions/checkout@v2
-      - name: Check version number
-        if: ${{ github.event_name == 'pull_request' }}
-        run: |
-          python3 ci/check_version_number.py --branch ${{ github.base_ref }}
-      - name: Finish
-        if: always()
-        run: echo 'done'
-
   pep_style:
     name: PEP style (python)
     runs-on: ubuntu-latest