Remove _dummy_thread and dummy_threading modules. These modules
were deprecated since Python 3.7 which requires threading support.

lisroach pushed a commit to lisroach/cpython that referenced this pull request

…-14143)

Remove _dummy_thread and dummy_threading modules. These modules
were deprecated since Python 3.7 which requires threading support.

DinoV pushed a commit to DinoV/cpython that referenced this pull request

…-14143)

Remove _dummy_thread and dummy_threading modules. These modules
were deprecated since Python 3.7 which requires threading support.

arhadthedev added a commit to nirs/cpython that referenced this pull request

I hope it will unblock the GitHub built-in merge resolver.