Remove contrib/project-stats.sh

This is an old script using tools that are no longer maintained or
recommended (and don't even work anymore).

Signed-off-by: Brian Goff <cpuguy83@gmail.com>

contrib/project-stats.sh

@@ -1,22 +0,0 @@
-#!/usr/bin/env bash
-
-## Run this script from the root of the docker repository
-## to query project stats useful to the maintainers.
-## You will need to install `pulls` and `issues` from
-## https://github.com/crosbymichael/pulls
-
-set -e
-
-echo -n "Open pulls: "
-PULLS=$(pulls | wc -l); let PULLS=$PULLS-1
-echo $PULLS
-
-echo -n "Pulls alru: "
-pulls alru
-
-echo -n "Open issues: "
-ISSUES=$(issues list | wc -l); let ISSUES=$ISSUES-1
-echo $ISSUES
-
-echo -n "Issues alru: "
-issues alru