drivers: habanalabs: remove unused dentry pointer for debugfs files

The dentry for the created debugfs file was being saved, but never used
anywhere.  As the pointer isn't needed for anything, and the debugfs
files are being properly removed by removing the parent directory,
remove the saved pointer as well, saving a tiny bit of memory and logic.

Cc: Oded Gabbay <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Tomer Tayar <[email protected]>
Cc: Moti Haimovski <[email protected]>
Cc: Omer Shpigelman <[email protected]>
Cc: Ofir Bitton <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Reviewed-by: Oded Gabbay <[email protected]>
Signed-off-by: Oded Gabbay <[email protected]>

0 files changed, 0 insertions, 0 deletions