Revert "[OpenMP][libomptarget] Enable parallel copies via multiple SDMA engines (#71801)"

This causes the tests to fail because the bots were not updated in time.
Revert until we update the bots to a valid version.

This reverts commit e876250b636522d1eb05a908f2e1cd451feab001.

GitOrigin-RevId: cc9e19ee59aec243355a79de8d99f1a79bd4c233
1 file changed