Update CircleCI configuration to only run pytest with pymongo 4, drop…

… pytest_pymongo4

.circleci/config.yml

@@ -26,35 +26,7 @@ jobs:
             pip install .[workflow-checks,graph-plotting,flask-plotting]
             pytest fireworks
 
-  pytest_pymongo4:
-    working_directory: ~/fireworks
-    docker:
-      - image: continuumio/miniconda3:4.6.14
-      - image: circleci/mongo:latest
-    steps:
-      - checkout
-      - run:
-          command: |
-            export PATH=$HOME/miniconda3/bin:$PATH
-            conda config --set always_yes yes --set changeps1 no
-            conda update -q conda
-            conda info -a
-            conda create -q -n test-environment python=3.8
-            source activate test-environment
-            conda update --quiet --all
-            pip install --quiet --ignore-installed -r requirements.txt -r requirements-ci.txt
-      - run:
-          name: Run fireworks tests
-          command: |
-            export PATH=$HOME/miniconda3/bin:$PATH
-            source activate test-environment
-            pip install --quiet -e .
-            pip install --quiet --upgrade pymongo
-            pytest fireworks
-
 workflows:
   version: 2
   build_and_test:
-    jobs:
-      - pytest
-      - pytest_pymongo4
+    jobs: [pytest]