Revert "[Polly] Update ScopInliner for NPM (#125427)"
This reverts commit 0b9a7b80c0674c5c6f746139912111bea7eae63b.
This is causing test failures under LLVM:
1. Other/pass-pipeline-parsing.ll
This broke premerge. This was notably not caught by premerge testing on
the original PR because the original PR only touches polly, and premerge
does not test LLVM when only polly is touched.
