Disk space and read_only_allow_delete

Question about the setting read_only_allow_delete. We ran out of disk space, created more space and set that setting to false so indexes could be written to again and all is working fine. So now that we are operational, is there anything that need to be done to make sure that the disk safe guard is put back? Or if we reach 95% watermark again, will re-trigger? Do I need to add a setting back?