[OFFLOAD][L0] Fix zero argurment kernel launch (#212296)
PR #205224 changed the path for kernels with no arguments to not use
appendLaunchKernelWithArgs, while at the same time it removed
zeKernelSetGroupSize which resulted in incorrect sizing of the kernel.
This PR removes the alternate path and makes sure all launches go
through appendLaunchKernelWithArgs.
Alternatively we can restore zeKernelSetGroupSize on the alternate path.
