Revert "[SLP]Initial support for copyable elements (non-schedulable only)"
This reverts commit 898bba311f180ed54de33dc09e7071c279a4942a.
This change caused hangs and crashes, see
https://github.com/llvm/llvm-project/pull/140279#issuecomment-3115051063.
llvm-project
936ee35d - Revert "[SLP]Initial support for copyable elements (non-schedulable only)"
