Remove OpenMLDemo unit tests. (#850)

Author: PGijsbers

appveyor.yml

@@ -43,4 +43,4 @@ build: false
 
 test_script:
   - "cd C:\\projects\\openml-python"
-  - "%CMD_IN_ENV% pytest -n 4 --timeout=600 --timeout-method=thread -sv --ignore='test_OpenMLDemo.py'"
+  - "%CMD_IN_ENV% pytest -n 4 --timeout=600 --timeout-method=thread -sv"

ci_scripts/test.sh

@@ -28,7 +28,7 @@ run_tests() {
         PYTEST_ARGS=''
     fi
 
-    pytest -n 4 --durations=20 --timeout=600 --timeout-method=thread -sv --ignore='test_OpenMLDemo.py' $PYTEST_ARGS $test_dir
+    pytest -n 4 --durations=20 --timeout=600 --timeout-method=thread -sv $PYTEST_ARGS $test_dir
 }
 
 if [[ "$RUN_FLAKE8" == "true" ]]; then