[basic.stc.dynamic.deallocation] Remove confusing note.

This note is only correct due to subtleties of later wording
(particularly that a destroying operator delete cannot be a function
template). Correcting it results in it simply duplicating existing
normative rules and not adding anything. So remove it instead.

Author: zygoloid

source/basic.tex

@@ -3399,9 +3399,8 @@
 A destroying operator delete shall be a usual deallocation function.
 A deallocation function may be an instance of a function
 template. Neither the first parameter nor the return type shall depend
-on a template parameter. \begin{note} That is, a deallocation function
-template shall have a first parameter of type \tcode{void*} and a return
-type of \tcode{void} (as specified above). \end{note} A deallocation
+on a template parameter.
+A deallocation
 function template shall have two or more function parameters. A template
 instance is never a usual deallocation function, regardless of its
 signature.