Try rerunning RuntimeError for example notebooks (#5988)

examples/conftest.py

@@ -49,28 +49,3 @@
         "reference/elements/bokeh/VLines.ipynb",
         "reference/elements/bokeh/VSpans.ipynb",
     ]
-
-
-def pytest_runtest_makereport(item, call):
-    """
-    Skip tests that fail because "the kernel died before replying to kernel_info"
-    this is a common error when running the example tests in CI.
-
-    Inspired from: https://stackoverflow.com/questions/32451811
-
-    """
-    from _pytest.runner import pytest_runtest_makereport
-
-    tr = pytest_runtest_makereport(item, call)
-
-    if call.excinfo is not None:
-        msgs = [
-            "Kernel died before replying to kernel_info",
-            "Kernel didn't respond in 60 seconds",
-        ]
-        for msg in msgs:
-            if call.excinfo.type == RuntimeError and call.excinfo.value.args[0] in msg:
-                tr.outcome = "skipped"
-                tr.wasxfail = f"reason: {msg}"
-
-    return tr

tox.ini

@@ -33,7 +33,7 @@ commands = pytest holoviews --cov=./holoviews --cov-report=xml --ui --browser ch
 [_examples]
 description = Test that default examples run
 deps = .[examples_tests]
-commands = pytest -n auto --dist loadscope --nbval-lax examples
+commands = pytest -n auto --dist loadscope --nbval-lax examples --reruns 3 --only-rerun RuntimeError
 
 [_all_recommended]
 description = Run all recommended tests