Revert "Windows build failing with SSL error #733"

This reverts commit ea577ba.

Author: tomwhite

conftest.py

@@ -1,5 +1,5 @@
 # Ignore VCF files during pytest collection, so it doesn't fail if cyvcf2 isn't installed.
-collect_ignore_glob = ["benchmarks/*.py", "sgkit/io/vcf/*.py", ".github/scripts/*.py"]
+collect_ignore_glob = ["sgkit/io/vcf/*.py", ".github/scripts/*.py"]
 
 
 def pytest_configure(config) -> None:  # type: ignore

sgkit/__init__.py

@@ -1,10 +1,3 @@
-import os
-
-if (
-    os.getenv("CI") == "true" and os.getenv("RUNNER_OS") == "Windows"
-):  # pragma: no cover
-    import sgkit._windows_ssl_fix  # noqa: F401 isort:skip # must be imported first to apply fix
-
 from pkg_resources import DistributionNotFound, get_distribution
 
 from .display import display_genotypes