compat: drop advertising of unsupported experimental bundle2 part
The support for this part was dropped long ago in 74bc8a0c2c02. But we forgot
to remove it from the 'simple4server' extension.
# utility to setup pythonpath to point into the tested repository
export SRCDIR=`dirname $TESTDIR`
if [ -n "$PYTHONPATH" ]; then
export HGTEST_ORIG_PYTHONPATH=$PYTHONPATH
export PYTHONPATH=$SRCDIR:$PYTHONPATH
else
export PYTHONPATH=$SRCDIR
fi