Quick question.... I have a K2i on FW 2.5.8 that many months back was successfully jailbroken and and screensaver hacked and is working great, but I was digging around (thinking of doing other things

) and came across 2 update bin files (Update_Kindle_2.5.7_B003 and Update_Kindle_2.5.8_B003) that somehow ended up in my linkss folder. Can I (should I) delete these?
Thanks for your help!