Remove unused newly_created_dir field from cache_inode_create_arg

Signed-off-by: Amit Dror <amitd@infinidat.com>
(cherry picked from commit 5f8a56f8df8d347461b87ca42b4b3fe0b4d382c6)

Signed-off-by: Adam C. Emerson <aemerson@linuxbox.com>
Remove unused supported_attributes field from struct attrlist

Signed-off-by: Amit Dror <amitd@infinidat.com>
(cherry picked from commit a2c548a1476153554e16b92dc5aa46aca2b4ce1c)

Signed-off-by: Adam C. Emerson <aemerson@linuxbox.com>