[etwist] remove no-longer-necessary uicache cleaning It was done before we were actually up, which means it could be too eager when combined with #6893185. Closes #6893247.

#!/usr/bin/make -f

export NO_SETUPTOOLS=1

%:
	dh $@ --with python2

override_dh_python2:
	dh_python2 -i /usr/share/cubicweb