diff --git a/doc/en/example/costlysetup/conftest.py b/doc/en/example/costlysetup/conftest.py
deleted file mode 100644
index 803559834..000000000
--- a/doc/en/example/costlysetup/conftest.py
+++ /dev/null
@@ -1,20 +0,0 @@
-import pytest
-
-
-@pytest.fixture(scope="session")
-def setup(request):
-    setup = CostlySetup()
-    yield setup
-    setup.finalize()
-
-
-class CostlySetup:
-    def __init__(self):
-        import time
-
-        print("performing costly setup")
-        time.sleep(5)
-        self.timecostly = 1
-
-    def finalize(self):
-        del self.timecostly
diff --git a/doc/en/example/costlysetup/sub_a/__init__.py b/doc/en/example/costlysetup/sub_a/__init__.py
deleted file mode 100644
index 792d60054..000000000
--- a/doc/en/example/costlysetup/sub_a/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-#
diff --git a/doc/en/example/costlysetup/sub_a/test_quick.py b/doc/en/example/costlysetup/sub_a/test_quick.py
deleted file mode 100644
index 38dda2660..000000000
--- a/doc/en/example/costlysetup/sub_a/test_quick.py
+++ /dev/null
@@ -1,2 +0,0 @@
-def test_quick(setup):
-    pass
diff --git a/doc/en/example/costlysetup/sub_b/__init__.py b/doc/en/example/costlysetup/sub_b/__init__.py
deleted file mode 100644
index 792d60054..000000000
--- a/doc/en/example/costlysetup/sub_b/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-#
diff --git a/doc/en/example/costlysetup/sub_b/test_two.py b/doc/en/example/costlysetup/sub_b/test_two.py
deleted file mode 100644
index b1653aaab..000000000
--- a/doc/en/example/costlysetup/sub_b/test_two.py
+++ /dev/null
@@ -1,6 +0,0 @@
-def test_something(setup):
-    assert setup.timecostly == 1
-
-
-def test_something_more(setup):
-    assert setup.timecostly == 1