Update ci_tools_unittest.sh

Author: DanielRyanSmith

tools/ci/ci_tools_unittest.sh

@@ -5,19 +5,6 @@ SCRIPT_DIR=$(cd $(dirname "$0") && pwd -P)
 WPT_ROOT=$SCRIPT_DIR/../..
 cd $WPT_ROOT
 
-run_applicable_tox () {
-    # instead of just running TOXENV (e.g., py38)
-    # run all environments that start with TOXENV
-    # (e.g., py38-firefox as well as py38)
-    local OLD_TOXENV="$TOXENV"
-    unset TOXENV
-    local RUN_ENVS=$(tox -l | grep "^${OLD_TOXENV}\(\-\|\$\)" | tr "\n" ",")
-    if [[ -n "$RUN_ENVS" ]]; then
-        tox -e "$RUN_ENVS"
-    fi
-    export TOXENV="$OLD_TOXENV"
-}
-
 if ./wpt test-jobs --all --includes tools_unittest; then
     pip install --user -U tox
     cd tools