Switch devenv to use pkg packages

ports/blackbox/build.sh

 # Copyright (c) 2014 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 EXTRA_CONFIGURE_ARGS+=" --with-x"
 EXTRA_CONFIGURE_ARGS+=" --x-includes=${NACLPORTS_INCLUDE}"
 EXTRA_CONFIGURE_ARGS+=" --x-libraries=${NACLPORTS_LIBDIR}"
 
 EXECUTABLES="src/blackbox util/bsetroot util/bstyleconvert"
 
 export EXTRA_LIBS+="-liconv \
   -lXext -lXmu -lSM -lICE -lXt -lX11 -lxcb -lXau ${NACL_CLI_MAIN_LIB}"
 # TODO(bradnelson): Find a better general pattern for this.
 # Repeat these here to include them which checking for X11 and linking libxcb,
 # which references ki_fcntl directly.
 export LIBS+=" -lnacl_io -lppapi"
 
 if [ "${NACL_LIBC}" = "newlib" ]; then
   NACLPORTS_CPPFLAGS+=" -I${NACLPORTS_INCLUDE}/glibc-compat"
   export LIBS+=" -lglibc-compat"
   # List again at the end of the others to resolve use of getservbyname in an X
   # library.
   export EXTRA_LIBS+=" -lglibc-compat"
 fi
-
-PublishStep() {
-  PublishByArchForDevEnv
-}