[rocm-libraries] ROCm/rocm-libraries#5849 (commit d9b89b2)

[CK_TILE ]Revert "[CK_TILE] Enable MXFP6 for MX GEMM op (#5095)" (#5849)

This reverts commit 7e55766ddf7e9e20791b0e4e2d7b4026cf16b637.

## Motivation

<!-- Explain the purpose of this PR and the goals it aims to achieve.
-->

## Technical Details

<!-- Explain the changes along with any relevant GitHub links. -->

## Test Plan

<!-- Explain any relevant testing done to verify this PR. -->

## Test Result

<!-- Briefly summarize test outcomes. -->

## Submission Checklist

- [x] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.