another experiment

Author: rok

.github/workflows/cpp.yml

@@ -395,9 +395,5 @@ jobs:
           ci/scripts/install_gcs_testbench.sh default
       - name: Test
         shell: msys2 {0}
-        env:
-          # TODO(GH-48743): TZDIR is needed for libstdc++ std::chrono timezone support
-          # https://github.com/apache/arrow/issues/48743
-          TZDIR: /usr/share/zoneinfo
         run: |
           ci/scripts/cpp_test.sh "$(pwd)" "$(pwd)/build"