[Koha] Koha Out of Memory

Hi everyone, I have an issue with the db-dumps created by Koha into the /var/spool/koha {instance name} . It finishes my memory. I was wondering whether running a CRON tab to auto delete these files will cause any harm. We run our own backups every 24 hours, thus we do not need these files. And does the database depend on these caches and dumps? Our koha is used to preserve African indigenous literature, and pre-colonial publications from the museum. Thank you so much in advance. Sincerely, Russel Shihepo Notitia Systems cc Namibia - Africa +264813223143