get rid of pre training saitama key

[Asdffffff]

it's very unnecessary. we barely even saw pre training saitama and we really don't know how strong he was. his strength against crablante was clearly an outlier and it was only there to show his start as a hero. it's been made clear that before training saitama was not at all superhuman and was just a normal human being, so he was definitely not on 9-B level. his win against crablante was just PIS.


and it's pointless to have the extra key since he barely even showed up in the OPM series.