Temporarily Revert "[DataLayout] Fix occurrences that size and range of...

Temporarily Revert "[DataLayout] Fix occurrences that size and range of pointers are assumed to be the same."

This reverts commit 5f620877.

This caused failures in Transforms/PhaseOrdering/scev-custom-dl.ll
const: Assertion `getBitWidth() == CR.getBitWidth() && "ConstantRange types don't agree!"' failed.