r/nginx: logrotate: do not delay compressing

_nginx_ access logs are typically either very small or very large.  For
small log files, it's fast enough to decompress them on the fly if
necessary.  For large files, they may take up so much space in
uncompressed form that the log volume fills too quickly.  In either
case, compressing the files as soon as they are rotated is a good
option, especially since their contents should already be sent to Loki.

roles/nginx/templates/nginx.logrotate.j2

@@ -5,7 +5,6 @@
     missingok
     notifempty
     compress
-    delaycompress
     sharedscripts
     postrotate
         /bin/kill -USR1 `cat /run/nginx.pid 2>/dev/null` 2>/dev/null || true