In Logical View do not include the unifier stats

The unifier stats inclusion is very confusing to the user.
e.g. If I have multiple input operators, in the logical view, they are showing to process the input as well. Whereas logically they are not! The number that's shown is the number that's for the stats of the input ports of the unifiers. In logical dag, unifiers do not exist, so their stats should not exist either.
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