pvq: cosmetics: drop OD_ROUND32 where it is a noop
pvq: cosmetics: drop OD_ROUND32 where it is a noop

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luctrudeau/daala,xiph/daala,luctrudeau/daala,ycho/daala,ycho/daala,ycho/daala,xiph/daala,luctrudeau/daala,ycho/daala,xiph/daala,xiph/daala,xiph/daala,ycho/daala,luctrudeau/daala,luctrudeau/daala