3a8e37bcf769 dma-buf: Remove the old selftest
dcd3e72ad422 dma-buf: Change st-dma-fence-chain.c to use kunit
f08f9e514c9f dma-buf: Change st-dma-fence-unwrap.c to use kunit
4b509d7ccbf4 dma-buf: Change st-dma-fence.c to use kunit
e6edf2257a29 dma-buf: Change st-dma-resv.c to use kunit