MAINT: demo: remove user_filter_bank.py, that's covered in the docs already.
MAINT: demo: remove user_filter_bank.py, that's covered in the docs already.

grlee77/pywt,rgommers/pywt,kwohlfahrt/pywt,kwohlfahrt/pywt,aaren/pywt,rgommers/pywt,michelp/pywt,rgommers/pywt,michelp/pywt,Dapid/pywt,aaren/pywt,PyWavelets/pywt,grlee77/pywt,rgommers/pywt,ThomasA/pywt,kwohlfahrt/pywt,eriol/pywt,ThomasA/pywt,Dapid/pywt,michelp/pywt,eriol/pywt,PyWavelets/pywt,ThomasA/pywt,Dapid/pywt,aaren/pywt,eriol/pywt