Simplification for lookupRefined
Simplification for lookupRefined

Dropped a member calculation which was unncessessary and which would not work
anymore if RefinedThis types lost their RefinedType target field.

AlexSikia/dotty,VladimirNik/dotty,svalaskevicius/dotty,sjrd/dotty,angi2/dotty,densh/dotty,reactormonk/dotty,reactormonk/dotty,folone/dotty,som-snytt/dotty,dotty-staging/dotty,auvik/dotty,dotty-staging/dotty,vsalvis/dotty,dotty-staging/dotty,lampepfl/dotty,svalaskevicius/dotty,dotty-staging/dotty,yusuke2255/dotty,sjrd/dotty,sjrd/dotty,som-snytt/dotty,lampepfl/dotty,AlexSikia/dotty,som-snytt/dotty,VladimirNik/dotty,yusuke2255/dotty,lampepfl/dotty,dotty-staging/dotty,sjrd/dotty,som-snytt/dotty,spetz911/dotty,sjrd/dotty,spetz911/dotty,som-snytt/dotty,lampepfl/dotty,vsalvis/dotty,auvik/dotty,folone/dotty,lampepfl/dotty,angi2/dotty,densh/dotty