WIP try without write & flush

Signed-off-by: Jussi Kukkonen <jkukkonen@google.com>

Author: jku

tuf/ngclient/updater.py

@@ -108,10 +108,6 @@ def _lock_file(path: str) -> Iterator[IO]:
         for _ in range(100):
             try:
                 with open(path, "wb") as f:
-                    # file must not be empty
-                    f.write(b"\0")
-                    f.flush()
-                    f.seek(0)
                     msvcrt.locking(f.fileno(), msvcrt.LK_LOCK, 1)
                     locked = True
                     yield f