IGTs (e.g. xe_vm) can provide the exact same coverage as the PT update
selftest. The PT update selftest is dependent on internal functions
which can change thus maintaining this test is costly and provide no
extra coverage. Delete this test.
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Oak Zeng <oak.zeng@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240425045513.1913039-14-matthew.brost@intel.com