Update node check to not run sass twice

They are now included in the `postbuild` npm step


Signed-off-by: John Molakvoæ <skjnldsv@users.noreply.github.com>

.github/workflows/node.yml

@@ -45,12 +45,6 @@ jobs:
           npm ci
           npm run build --if-present
 
-      - name: Build css
-        run: npm run sass
-
-      - name: Build icons css
-        run: npm run sass:icons
-
       - name: Check webpack build changes
         run: |
           bash -c "[[ ! \"`git status --porcelain `\" ]] || (echo 'Please recompile and commit the assets, see the section \"Show changes on failure\" for details' && exit 1)"