feat: use the nethsm-sdk-py lib

Makefile

@@ -6,7 +6,7 @@ PYTHON3=python3
 PYTHON3_VENV=venv/bin/python3
 
 # whitelist of directories for flake8
-FLAKE8_DIRS=pynitrokey/nethsm pynitrokey/cli/nk3 pynitrokey/nk3
+FLAKE8_DIRS=pynitrokey/cli/nk3 pynitrokey/nk3
 
 all: init
 
@@ -132,22 +132,6 @@ build-CI-test:
 CI-test:
 	sudo docker run -it --rm -v $(PWD):/app nitro-python-ci make CI VENV=venv-ci
 
-OPENAPI_OUTPUT_DIR=${PWD}/tmp/openapi-client
-
-nethsm-api.yaml:
-	curl "https://nethsmdemo.nitrokey.com/api_docs/nethsm-api.yaml" --output nethsm-api.yaml
-
-# Generates the OpenAPI client for the NetHSM REST API
-.PHONY: nethsm-client
-nethsm-client: nethsm-api.yaml
-	mkdir -p "${OPENAPI_OUTPUT_DIR}"
-	python tools/transform_nethsm_api_spec.py nethsm-api.yaml "${OPENAPI_OUTPUT_DIR}/nethsm-api.json"
-	docker run --rm -ti -v "${OPENAPI_OUTPUT_DIR}:/out" \
-		openapijsonschematools/openapi-json-schema-generator-cli:3.0.0 generate \
-		-i=/out/nethsm-api.json \
-		-g=python -o=/out/python --package-name=pynitrokey.nethsm.client
-	cp -r "${OPENAPI_OUTPUT_DIR}/python/src/pynitrokey/nethsm/client" pynitrokey/nethsm
-
 .PHONY: secrets-test-all secrets-test secrets-test-report
 LOG=info
 TESTADD=

docs/developer-guide.rst

@@ -86,29 +86,4 @@ Commands that require a password should first try to read the password from an e
 Updating the NetHSM client
 --------------------------
 
-To update the NetHSM HTTP client, you need to download the updated ``nethsm-api.yml`` OpenAPI specification. The easiest is to download it from the NetHSM demo server (``curl`` required):
-
-.. code:: bash
-
-    make nethsm-api.yaml --always-make
-
-Then, run the generation script, docker is required:
-
-.. code:: bash
-
-    make nethsm-client
-
-Be sure to run the linter, tests and check that everything is working as expected after the update.
-
-Custom functions
-~~~~~~~~~~~~~~~~
-
-The generator doesn't support upload of binary files and custom ``Content-Type`` headers (fails to serialize).
-To work around this, some functions are written manually, using ``NetHSM.request()`` to send the request.
-
-The current list of such functions is:
-
-- ``NetHSM.restore()`` : ``/system/restore``
-- ``NetHSM.set_key_certificate()`` : ``/keys/{KeyID}/cert``
-- ``NetHSM.set_certificate()`` : ``/config/tls/cert.pem``
-- ``NetHSM.update()`` : ``/system/update``
+The NetHSM client is now managed in a `separate repo <https://github.com/Nitrokey/nethsm-sdk-py>`__