remove workarounds

Author: N-Coder

.github/workflows/wheels.yml

@@ -1,8 +1,6 @@
 name: wheels
 
 on: [ push, pull_request ]
-env:
-  STDCXX: 17
 
 jobs:
   build_wheels:
@@ -85,8 +83,6 @@ jobs:
     name: Test on ${{ matrix.os }}
     needs: check_contents
     runs-on: ${{ matrix.os }}
-    env:
-      CLING_REBUILD_PCH: 1
     strategy:
       fail-fast: false
       matrix:
@@ -110,7 +106,7 @@ jobs:
         run: pip install --no-index --find-links ./dist ogdf-wheel
 
       - name: Install ogdf-python
-        run: pip install git+https://github.com/N-Coder/ogdf-python.git "cppyy<3.1"
+        run: pip install git+https://github.com/N-Coder/ogdf-python.git
 
       - name: Get ogdf-python info
         run: python -m ogdf_python