If you don't need to use an alarm for a while, you can always turn it off and forget about it. But if you know you'll never need it again, you can delete it too.
Kung hindi mo kailangang gumamit ng alarm nang matagal-tagal, maaari mo itong i-off at kalimutan anumang oras. Pero kung alam mong hindi mo na ito kakailanganin pang muli, maaari mo rin itong tanggalin.