[clang-tidy] Remove duplicated logic in UnnecessaryValueParamCheck and use FunctionParmMutationAnalyzer instead.

Reviewers: alexfh, JonasToth, george.karpenkov

Subscribers: xazax.hun, kristof.beyls, chrib, a.sidorin, Szelethus, cfe-commits

Differential Revision: https://reviews.llvm.org/D52158

git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@342403 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed