dc0657c762build: Fix C4005 "macro redefinition" MSVC warnings in examples (Hennadii Stepanov) Pull request description: This PR: - fixes C4005 "macro redefinition" MSVC warnings in examples - removes warning suppressions in both build systems, Autotools-based and CMake-based ones ACKs for top commit: real-or-random: utACKdc0657c762Tree-SHA512: fe3bb8f06b3ff1d51e5e20754a289e0e6b99ddf4c0bd4e6e4786e2558e71e043ab23ff7782a83a902df5db28d18ae65312674c373fdc49f5af252763a22bd0fb