main/nginx: remove tmp file

file was added by mistake. fixes commit c5cd998a (main/nginx: fix transition /var/tmp/nginx -> /var/lib/nginx/tmp)

main/nginx: remove tmp file
d0830f3d · Natanael Copa · c5cd998a · c5cd998a
Commit d0830f3d authored 3 years ago by Natanael Copa
--- a/main/nginx/.nginx.post-upgrade.swo
+++ b/main/nginx/.nginx.post-upgrade.swo