[temp.constr.concept] Replace "The constraint" with CD to clarify.

Author: burblebee

source/templates.tex

@@ -1843,8 +1843,7 @@
 the parameter mapping of \tcode{CD} and the arguments of \tcode{CI}.
 
 \pnum
-%FIXME: What "constraint"? CD?
-The constraint is satisfied if \tcode{CI$''$} is satisfied.
+\tcode{CD} is satisfied if \tcode{CI$''$} is satisfied.
 \begin{note}
 Checking whether \tcode{CI$''$} is satisfied
 can lead to further normalization of concept-dependent constraints.