Stop tracking VERSION file

[dmiklic]

The file is autogenerated and should not be tracked. The way create_package.py currently works, it writes the current git commit hash to the file but then changes a tracked file (VERSION), thus creating a change to the wrt. to the commit it is referencing. The code still works correctly, but it is just wrong.

@rmm-fcul what's actually the purpose of this code in create_package.py:

# but first, ensure we are working with the repo version
VERSIONFILE=VERSION
#VERSIONFILE=/dev/null
if [ -f "${VERSIONFILE}" ] ; then
    git checkout -- ${VERSIONFILE}
else
    echo "[I] skipping cleanup"
fi

[rmm-fcul]

that part of the code is there because the older version appended the version info to the README which meant that if you ran it >1 time, multiple copies of the version info would go into the file. However, if the VERSION file should only be a generated file for distribution bundles, I'll remove this code and also remove the tracking of the file.