remove Qt5*_EXECUTABLE_COMPILE_FLAG
remove Qt5*_EXECUTABLE_COMPILE_FLAG

as it is useless and causes errors with old compilers

FaizaGara/lima,FaizaGara/lima,FaizaGara/lima,FaizaGara/lima,FaizaGara/lima,FaizaGara/lima,FaizaGara/lima