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.
all: tutorials/tutorial.rst static/logo-evolve.ico
sphinx-build . ../html/
tutorials/tutorial.rst: tutorials/tutorial.t
python test2rst.py tutorials/
static/logo-evolve.ico: static/logo-evolve.svg
convert -resize 36x36 static/logo-evolve.svg static/logo-evolve.ico