Regarding the removal of /dev/diag interface

Hello, everyone

I am trying to collect DM information through Qualcomm diagnostic kit(/dev/diag) on SM-G998U device.
However, in the currently uploaded open source(G998USQU4AUF5), the contents of /dev/diag are deleted.

Is the Diag Interface changed to something else? Or does the latest device not support Diag Interface?

I hope someone can help me out.

Thank you