[rust] Comment out build ID handling on FreeBSD

This does not build with FreeBSD 11 at least.

Author: nikic

compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp

@@ -613,7 +613,7 @@ static int AddModuleSegments(const char *module_name, dl_phdr_info *info,
       cur_module.addAddressRange(cur_beg, cur_end, executable,
                                  writable);
     } else if (phdr->p_type == PT_NOTE) {
-#  ifdef NT_GNU_BUILD_ID
+#  if defined(NT_GNU_BUILD_ID) && !SANITIZER_FREEBSD
       uptr off = 0;
       while (off + sizeof(ElfW(Nhdr)) < phdr->p_memsz) {
         auto *nhdr = reinterpret_cast<const ElfW(Nhdr) *>(info->dlpi_addr +