-----------------------------------
	Remove a redundant test in WorkWrap
	-----------------------------------

We were making a worker/wrapper for an INLINE
function when it wasn't necessary, and that's a Bad Idea.
As the comment with WorkWrap.tryWW now says:

	-- It's very important to refrain from w/w-ing an INLINE function
	-- If we do so by mistake we transform
	--	f = __inline (\x -> E)
	-- into
	--	f = __inline (\x -> case x of (a,b) -> fw E)
	--	fw = \ab -> (__inline (\x -> E)) (a,b)
	-- and the original __inline now vanishes, so E is no longer
	-- inside its __inline wrapper.  Death!  Disaster!

There was one case when we did w/w it (to do with coercions),
but it turned out to be a vestige, as the OUT OF DATE NOTE says.