requirements: cleanup and use httptest 1.0.0

Since `pip install -e .` is used all default ASU requirements are
installed anyway, only add what's really needed.

Signed-off-by: Paul Spooren <mail@aparcar.org>

requirements-dev.txt

@@ -1,42 +1,2 @@
-attrs==19.3.0
-certifi==2020.12.5
-cffi==1.14.0
-chardet==3.0.4
-Click==7.0
-coverage==5.0.3
-fakeredis==1.4.5
-Flask==1.1.1
-Flask-Cors==3.0.8
-future==0.18.2
-idna==2.10
-importlib-metadata==1.5.0
-itsdangerous==1.1.0
-Jinja2==2.11.3
-livereload==2.6.1
-lunr==0.5.6
-Markdown==3.2.1
-MarkupSafe==1.1.1
-mkdocs==1.0.4
-mkdocstrings==0.7.1
-more-itertools==8.2.0
-nltk==3.4.5
-packaging==20.1
-pluggy==0.13.1
-py==1.10.0
-pycparser==2.19
-pymdown-extensions==6.3
-PyNaCl==1.3.0
-pyparsing==2.4.6
-pytest==5.3.5
-pytest-httpserver==0.3.4
-PyYAML==5.4
-redis==3.5.3
-requests==2.23.0
-rq==1.7.0
-six==1.14.0
-sortedcontainers==2.1.0
-tornado==6.0.3
-urllib3==1.25.11
-wcwidth==0.1.8
-Werkzeug==1.0.0
-zipp==3.0.0
+fakeredis==1.5.0
+pytest-httpserver==1.0.0

tests/conftest.py

@@ -111,6 +111,6 @@ def runner(app):
     return app.test_cli_runner()
 
 
-@pytest.fixture
+@pytest.fixture(scope="session")
 def httpserver_listen_address():
     return ("127.0.0.1", 8001)