Well no...
From your other thread on the Touch forum I assume you have a Touch. The Sprint Touch does not have an IR port, the option is there because it is part of the OS as far as I know.
Also, turning off something like IR would have no effect on memory, only on battery life.
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Samsung Epic 4G - LegendaryROM / Samurai kernel
ViewSonic gTablet - Flashback Honeycomb Alpha 10.1
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