Revert "[mlir][vector] Make `TransposeOpLowering` configurable (#73915)" (#75062)

Reverting a workaround intended specifically for SPRI-V. That workaround
emerged from this discussion:

  * https://github.com/llvm/llvm-project/pull/72105

AFAIK, it hasn't been required in practice. This is based on IREE
(https://github.com/openxla/iree), which has just bumped it's fork of
LLVM without using it (*).

(*) https://github.com/openxla/iree/commit/cef31e775e03ec83420e4a7b47a992242d8df37c

This reverts commit bbd2b08b.