This was initially added a long time ago[1] to help with certain exit
behavior while running under a debugger. However, this shouldn't be
necessary any longer.
More importantly, tests have started to use the `--debug` option[2].
Somehow the bots are fine, but anyone running the tests locally on
Windows will experience what looks like a hang; unless they press a key
to allow the tests to continue.
[1] 1cc19c6993
[2] The `blendfile_versioning` test
Pull Request: https://projects.blender.org/blender/blender/pulls/114605
8178b12af4