HELP! Erased HDD and OpenCore EFI boot didn’t get erased!

I wanted a new fresh install of macOS High Sierra since my storage was getting full. However I erased the HDD before the EFI boot and now when I turn on my computer it shows EFI as a option when I don’t want it to, I tried erasing it again, didn’t work, please help.

submitted by /u/Difficult_Opening_13
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