Remove 'packetutils.c'
Remove 'packetutils.c'

This is no longer built, and all source functionality has been moved to
'packetutils.'h

Change-Id: I84699017ce8efc1a54c2233e2d62b707f1cb1faa
Reviewed-on: http://review.couchbase.org/71062
Reviewed-by: Sergey Avseyev <87f6d5e4fd3644c3c20800cde7fd3ad1569370b3@gmail.com>
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>

avsej/libcouchbase,couchbase/libcouchbase,kojiromike/libcouchbase,mody/libcouchbase,couchbase/libcouchbase,mody/libcouchbase,couchbase/libcouchbase,mody/libcouchbase,mody/libcouchbase,couchbase/libcouchbase,avsej/libcouchbase,couchbase/libcouchbase,avsej/libcouchbase,avsej/libcouchbase,kojiromike/libcouchbase,avsej/libcouchbase,kojiromike/libcouchbase,avsej/libcouchbase,couchbase/libcouchbase,couchbase/libcouchbase,kojiromike/libcouchbase,avsej/libcouchbase