remove old stuff

requirements.txt

-autopep8==1.5.4
-click==7.1.2
-Flask==1.1.2
-itsdangerous==1.1.0
-Jinja2==2.11.2
-MarkupSafe==1.1.1
-Pillow==8.0.1
-# Editable Git install with no remote (pixelframe==0.0.0)
--e /home/chris/dev/fun/pixelframe
-pycodestyle==2.6.0
-rope==0.18.0
-sacn==1.4.6
-toml==0.10.2
-Werkzeug==1.0.1