bin/gen_release_notes.py: drop new_features.txt when we release XX.Y.0

Otherwise, we (rightfully) get a warning about having new features in
a bugfix release.

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5416>

diff --git a/bin/gen_release_notes.py b/bin/gen_release_notes.py
index 3a580a4..c72e440 100755 (executable)
--- a/bin/gen_release_notes.py
+++ b/bin/gen_release_notes.py
@@ -211,6 +211,7 @@ def get_features(is_point_release: bool) -> typing.Generator[str, None, None]:
                 yield line
             else:
                 yield "None"
+        p.unlink()
     else:
         yield "None"