MFT: Delete unused files

[vkucera]

See #14973

[github-actions]

REQUEST FOR PRODUCTION RELEASES:
To request your PR to be included in production software, please add the corresponding labels called "async-" to your PR. Add the labels directly (if you have the permissions) or add a comment of the form (note that labels are separated by a ",")

+async-label <label1>, <label2>, !<label3> ...

This will add <label1> and <label2> and removes <label3>.

The following labels are available
async-2023-pbpb-apass4
async-2023-pp-apass4
async-2024-pp-apass1
async-2022-pp-apass7
async-2024-pp-cpass0
async-2024-PbPb-apass1
async-2024-ppRef-apass1
async-2024-PbPb-apass2
async-2023-PbPb-apass5

[ktf]

@mconcas @fprino could you please have a look at this PR and either signoff or close it? Thanks.

[mconcas]

Hi, this is MFT-only stuff. @mcoquet642 or -as per usual- @shahor02 are better candidates.

[mcoquet642]

I am unable to merge currently, but it is fine to remove these files