Remove filesystem only tets

.github/workflows/test.yml

@@ -35,18 +35,10 @@ jobs:
         python -V
         python -m pip install --upgrade pip
 
-    - name: Install packages with file-system backend
-      run: |
-        pip install -e .
-        pip install -r tests/requirements.txt
-
-    - name: Test file-system only package
-      run: |
-        python -m pytest --cov-fail-under=0 tests/test_backend_filesystem_only.py tests/test_backend_filesystem.py
-
-    - name: Install package with all dependencies
+    - name: Install dependencies
       run: |
         pip install -r requirements.txt
+        pip install -r tests/requirements.txt
 
     - name: Test with pytest
       env: