what has the diameter got to do with it, look at any gear chart, it quotes teeth not diameter
A chainring designed for 48 teeth has a different diameter to one with 47. filing one off just leaves you with 48 ring missing a tooth.
I am just trying to help answer your question but it is getting tiresome...
@Ivanskavinsky started
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A chainring designed for 48 teeth has a different diameter to one with 47. filing one off just leaves you with 48 ring missing a tooth.
I am just trying to help answer your question but it is getting tiresome...