Revert "Stop intercepting some malloc-related functions on FreeBSD and macOS"

This reverts r293337, which breaks tests on Windows:

malloc-no-intercept-499eb7.o : error LNK2019: unresolved external symbol _mallinfo referenced in function _main

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@293346 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed