build: remove unnecessary reinstallation of deps in tox

Author: D4Vinci

tox.ini

@@ -15,11 +15,6 @@ deps =
     camoufox
     -r{toxinidir}/tests/requirements.txt
 extras = ai,shell
-commands_pre =
-    # Install browsers in the tox virtual environment
-    python -m playwright install chromium
-    python -m playwright install-deps chromium firefox
-    python -m camoufox fetch --browserforge
 commands =
     # Run browser tests without parallelization (avoid browser conflicts)
     pytest --cov=scrapling --cov-report=xml -k "DynamicFetcher or StealthyFetcher" --verbose