Purge the remove_if_temporary_notebook function

Not needed if rewrite_notebook always produces temporary files.
Just use os.remove to clean up after rewrite_notebook.

dev_tools/notebooks/__init__.py

@@ -12,9 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from dev_tools.notebooks.utils import (
-    filter_notebooks,
-    list_all_notebooks,
-    remove_if_temporary_notebook,
-    rewrite_notebook,
-)
+from dev_tools.notebooks.utils import filter_notebooks, list_all_notebooks, rewrite_notebook

dev_tools/notebooks/isolated_notebook_test.py

@@ -33,12 +33,7 @@
 import pytest
 
 from dev_tools import shell_tools
-from dev_tools.notebooks import (
-    list_all_notebooks,
-    filter_notebooks,
-    rewrite_notebook,
-    remove_if_temporary_notebook,
-)
+from dev_tools.notebooks import list_all_notebooks, filter_notebooks, rewrite_notebook
 
 # these notebooks rely on features that are not released yet
 # after every release we should raise a PR and empty out this list
@@ -213,7 +208,7 @@ def test_notebooks_against_released_cirq(partition, notebook_path, cloned_env):
             f"instead of `pip install cirq` to this notebook, and exclude it from "
             f"dev_tools/notebooks/isolated_notebook_test.py."
         )
-    remove_if_temporary_notebook(rewritten_notebook_path)
+    os.remove(rewritten_notebook_path)
 
 
 @pytest.mark.parametrize("notebook_path", NOTEBOOKS_DEPENDING_ON_UNRELEASED_FEATURES)

dev_tools/notebooks/notebook_test.py

@@ -24,12 +24,7 @@
 import pytest
 
 from dev_tools import shell_tools
-from dev_tools.notebooks import (
-    filter_notebooks,
-    list_all_notebooks,
-    rewrite_notebook,
-    remove_if_temporary_notebook,
-)
+from dev_tools.notebooks import filter_notebooks, list_all_notebooks, rewrite_notebook
 
 SKIP_NOTEBOOKS = [
     # skipping vendor notebooks as we don't have auth sorted out
@@ -88,4 +83,4 @@ def test_notebooks_against_released_cirq(notebook_path):
             f"notebook (in Github Actions, you can download it from the workflow artifact"
             f" 'notebook-outputs')"
         )
-    remove_if_temporary_notebook(rewritten_notebook_path)
+    os.remove(rewritten_notebook_path)

dev_tools/notebooks/utils.py

@@ -120,19 +120,3 @@ def rewrite_notebook(notebook_path):
         new_file.writelines(lines)
 
     return new_file.name
-
-
-def remove_if_temporary_notebook(notebook_path: str):
-    """Delete temporary notebook if written by `rewrite_notebook`.
-
-    Do nothing if the specified notebook is not in the temporary directory
-    or if its filename does not end in '-rewrite.ipynb'
-
-    Use this to safely clean up notebooks created by `rewrite_notebook`.
-    """
-    if (
-        notebook_path.endswith('-rewrite.ipynb')
-        and os.path.isfile(notebook_path)
-        and os.path.dirname(notebook_path) == tempfile.gettempdir()
-    ):
-        os.remove(notebook_path)

dev_tools/notebooks/utils_test.py

@@ -45,8 +45,7 @@ def test_rewrite_notebook():
         rewritten = f.read()
         assert rewritten == 'd = 3\nd = 4'
 
-    dt.remove_if_temporary_notebook(path)
-    assert not os.path.exists(path)
+    os.remove(path)
     shutil.rmtree(directory)
 
 
@@ -59,8 +58,7 @@ def test_rewrite_notebook_multiple():
         rewritten = f.read()
         assert rewritten == 'd = 3\nd = 1'
 
-    dt.remove_if_temporary_notebook(path)
-    assert not os.path.exists(path)
+    os.remove(path)
     shutil.rmtree(directory)
 
 
@@ -73,8 +71,7 @@ def test_rewrite_notebook_ignore_non_seperator_lines():
         rewritten = f.read()
         assert rewritten == 'd = 3\nd = 4'
 
-    dt.remove_if_temporary_notebook(path)
-    assert not os.path.exists(path)
+    os.remove(path)
     shutil.rmtree(directory)
 
 
@@ -88,8 +85,7 @@ def test_rewrite_notebook_no_tst_file():
     assert path != ipynb_path
     assert filecmp.cmp(path, ipynb_path)
 
-    dt.remove_if_temporary_notebook(path)
-
+    os.remove(path)
     shutil.rmtree(directory)