accel/habanalabs: remove sim code

There were a few places where simulator only code got into the upstream.
Remove those places that can confuse other developers.

Fixes: 2a0a839b ("habanalabs: extend fatal messages to contain PCI info")
Cc: Moti Haimovski <mhaimovski@habana.ai>
Cc: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>