[charmod-norm] fix requirement C5 (from [I18N-ACTION-487])

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== fix requirement C5 (from [I18N-ACTION-487]) ==
requirement C5 mentions normalizing transcoders. Remove requirement 
and fix text.

See https://github.com/w3c/charmod-norm/issues/49
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Received on Thursday, 21 January 2016 20:00:48 UTC