Revert "[VPlan] Use VPInstructionWithType for uniform casts." (#202427)

Reverts llvm/llvm-project#140623

breaks https://lab.llvm.org/buildbot/#/builders/160/builds/39088 due to
visibility issues

GitOrigin-RevId: 5eae7dc2ac7d8dde06a943771b792aeb91c31f57
14 files changed