Remove unused tox envs

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.6
-envlist = py36, py37, py38, py39, lint, coverage, black, ci, json
+envlist = py39, lint, coverage, black
 skipsdist = True
 
 [testenv]
@@ -32,15 +32,3 @@ commands =
 [testenv:black]
 envdir = .tox/lint
 commands = black {posargs} ecosystem tests --check
-
-[testenv:ci]
-commands =
-  apt-get install -yq docker-ce docker-ce-cli
-  curl https://raw.githubusercontent.com/nektos/act/master/install.sh | sudo bash
-  act -j submission_workflow -e .github/workflows/test_payloads/submission-wf-newissue.json --env-file .github/workflows/test_payloads/my.env
-  act -j submission_workflow -e .github/workflows/test_payloads/submission-wf-commenttrigger.json --env-file .github/workflows/test_payloads/my.env
-
-[testenv:json]
-allowlist_externals = bash
-commands =
-  bash -ec 'for i in ecosystem/resources/*.json; do echo $i; cat $i | jq empty; done'