Remove -W

Author: jorgensd

.github/workflows/book_stable.yml

@@ -34,7 +34,7 @@ jobs:
           python3 -m pip install --no-binary=h5py .[netgen]
 
       - name: Build the book
-        run: jupyter-book build . -W
+        run: jupyter-book build .
 
       - uses: actions/upload-artifact@v4
         if: always()

.github/workflows/test_nightly.yml

@@ -37,10 +37,7 @@ jobs:
           python3 -m pip install --no-build-isolation --break-system-packages --no-cache-dir --no-binary=h5py .[netgen] --upgrade
 
       - name: Test building the book
-        run: PYVISTA_OFF_SCREEN=false jupyter-book build  -W .
-
-      - name: Test building the book
-        run: PYVISTA_OFF_SCREEN=false jupyter-book build  -W .
+        run: PYVISTA_OFF_SCREEN=false jupyter-book build .
 
       - name: Test complex notebooks in parallel
         working-directory: chapter1