Trips on Flop - Turn str8 scare card

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Hi Omaha Queen - Assuming Villain has the Broadway (ace high straight) and a re-draw to a spade flush, here's the math:
$82*10/44+$41*3/44-$26*31/44 =
+$18.64+$2.80-$18.32 = +$3.12


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Why isn't it 82*10/42 + ((1/4)*(3/42) + (3/4)*(2/42)) - 26*29/42 ?

If we are assuming he has TQxx with a flush draw, can we not remove those from the deck, while taking into account the odds of having the Qs?