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Yes I did but I thought that's for those who had a work permitted here not hoe the student visaYou heard wrong about it "being required in the past and and no longer requested". Regardless of whether one is processing AOS or CP all applicants are required to be able to convince the IO/CO that they will not become a public charge either by showing they have their own personal financial means of supporting themselves or by presenting an affidavit of support.
You claim you've gone through the AOS spreadsheet I posted, you should have noticed the section that dealing with financial requirement or you assume that section is no longer applicable?