removed libpcap dir

libpcap/README.macosx

@@ -1,43 +0,0 @@
-As with other systems using BPF, Mac OS X allows users with read access
-to the BPF devices to capture packets with libpcap and allows users with
-write access to the BPF devices to send packets with libpcap.
-
-On some systems that use BPF, the BPF devices live on the root file
-system, and the permissions and/or ownership on those devices can be
-changed to give users other than root permission to read or write those
-devices.
-
-On newer versions of FreeBSD, the BPF devices live on devfs, and devfs
-can be configured to set the permissions and/or ownership of those
-devices to give users other than root permission to read or write those
-devices.
-
-On Mac OS X, the BPF devices live on devfs, but the OS X version of
-devfs is based on an older (non-default) FreeBSD devfs, and that version
-of devfs cannot be configured to set the permissions and/or ownership of
-those devices.
-
-Therefore, we supply a "startup item" for OS X that will change the
-ownership of the BPF devices so that the "admin" group owns them, and
-will change the permission of the BPF devices to rw-rw----, so that all
-users in the "admin" group - i.e., all users with "Allow user to
-administer this computer" turned on - have both read and write access to
-them.
-
-The startup item is in the ChmodBPF directory in the source tree.  A
-/Library/StartupItems directory should be created if it doesn't already
-exist, and the ChmodBPF directory should be copied to the
-/Library/StartupItems directory (copy the entire directory, so that
-there's a /Library/StartupItems/ChmodBPF directory, containing all the
-files in the source tree's ChmodBPF directory; don't copy the individual
-items in that directory to /Library/StartupItems).
-
-If you want to give a particular user permission to access the BPF
-devices, rather than giving all administrative users permission to
-access them, you can have the ChmodBPF/ChmodBPF script change the
-ownership of /dev/bpf* without changing the permissions.  If you want to
-give a particular user permission to read and write the BPF devices and
-give the administrative users permission to read but not write the BPF
-devices, you can have the script change the owner to that user, the
-group to "admin", and the permissions to rw-r-----.  Other possibilities
-are left as an exercise for the reader.