Halve the length of cf.xsl by removing 27(!) redundant special-case

templates, all of which are covered by the fallback template that
Jakub added in the commit f9db8c65f2912035dee49a7d20abb82a0cf48bd3
back in November.  I have verified by regression-testing on a
dummied-up full CF record that this stylesheet has exactly the same
effect.  Should be negligibly faster, but more importantly easier to
maintain.