Revert "[NFCI] createCFGSimplificationPass(): migrate to also take SimplifyCFGOptions"

This reverts commit b2018198.
This commit introduced a Dependency Cycle between Transforms/Scalar and
Transforms/Utils. Transforms/Scalar already depends on Transforms/Utils,
so if SimplifyCFGOptions.h is moved to Scalar, and Utils/Local.h still
depends on it, we have a cycle.