Delete stubs for cryptography (#9459)

Typeshed's stubs for `paramiko` and `pyOpenSSL` now depend on the `cryptography` package, which now provides inline types at runtime

stubs/pyOpenSSL/METADATA.toml

@@ -1,2 +1,3 @@
 version = "23.0.*"
-requires = ["types-cryptography"]
+# Requires a version of cryptography with a `py.typed` file
+requires = ["cryptography>=35.0.0"]