package/python-pudb: remove spurious vim swap

Commit 70440e28c8ee (package/python-pudb: bump to version 2021.1)
incorrectly included a vim swap file. Remove it.

Reported-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Asaf Kahlon <asafka7@gmail.com>