[PATCH] [clang-tidy] Remove google-readability-function check.

[Alexander Kornienko]

In http://reviews.llvm.org/D8261#141284, @djasper wrote:

> Looks good. I guess we can move it to misc if somebody would want to have this check.


It's better suitable for readability/. I'll move it there just in case.


http://reviews.llvm.org/D8261

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