Revert "[LLDB] [test] Use %clang_cl instead of build.py in a few tests"

This reverts SVN r375156, as it seems to have broken tests when run
on macOS: http://green.lab.llvm.org/green/view/LLDB/job/lldb-cmake/2706/console

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@375163 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed