ci: drop playwright install

Author: GuillaumeLagrange

.github/workflows/codspeed.yml

@@ -137,10 +137,6 @@ jobs:
         working-directory: examples/with-electron-and-walltime
         run: pnpm --filter @mail-client-demo/electron build
 
-      - name: Install Playwright browsers
-        working-directory: examples/with-electron-and-walltime
-        run: pnpm --filter @mail-client-demo/electron exec playwright install --with-deps chromium
-
       - name: Run electron inbox e2e under codspeed
         uses: CodSpeedHQ/action@main
         env: