Inconsistency with WITHOUT_BLUETOOTH in src.conf

[Jiawei Ye]

The following path:
/usr/include/netgraph/bluetooth/include
/usr/include/netgraph/bluetooth
are still created in makeworld/installworld cycle, when
WITHOUT_BLUETOOTH=1 is in src.conf.
They were already deleted after my previous world-building cycle.

root at chihiro:/usr/src# make check-old
>>> Checking for old files
>>> Checking for old libraries
>>> Checking for old directories
/usr/include/netgraph/bluetooth/include
/usr/include/netgraph/bluetooth
To remove old files and directories run 'make delete-old'.
To remove old libraries run 'make delete-old-libs'.
root at chihiro:/usr/src# ls -l /usr/include/netgraph/bluetooth/include
total 0
root at chihiro:/usr/src# ls -l /usr/include/netgraph/bluetooth/
total 2
drwxr-xr-x  2 root  wheel  512  6 22 16:34 include/


-- 
"Without the userland, the kernel is useless."
               --inspired by The Tao of Programming