Remove unused approach to format checking

Author: frankier

.github/workflows/CI.yml

@@ -44,16 +44,6 @@ jobs:
       - name: Run tests
         run: |
           cd test && julia --project=. ./runtests.jl
-  test-format:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: julia-actions/cache@v2
-      - name: Install JuliaFormatter and format
-        shell: bash
-        run: |
-          julia  -e 'import Pkg; Pkg.add("JuliaFormatter")'
-          ./scripts/format_check.sh
   docs:
     name: Documentation
     runs-on: ubuntu-latest