Remove stale directory

This commit was SVN r29620.

contrib/greenplum/nconfig

@@ -1,12 +0,0 @@
-#!/bin/sh
-
-if [ $# -lt 1 ] ; then
-  echo "usage: gpconfig -vpath <prefix>"
-  exit 1
-fi
-
-if [ $1 = "-vpath" ] ; then
-  ../autogen.pl -no-ompi && ../configure --prefix=$1 --with-platform=../contrib/platform/greenplum/nmon/linux && rm -rf $1 && make clean > /dev/null && make -j6 all > /dev/null && make -j6 install > /dev/null
-else
-  ./autogen.pl -no-ompi && ./configure --prefix=$1 --with-platform=./contrib/platform/greenplum/nmon/linux && rm -rf $1 && make clean > /dev/null && make -j6 all > /dev/null && make -j6 install > /dev/null
-fi