[temp.arg.explicit] Remove note obsoleted by P0846R0

Author: jensmaurer

source/templates.tex

@@ -6905,45 +6905,6 @@
 function name, there is no way to provide an explicit template
 argument list for these function templates.
 \end{note}
-% L7048 USA Core3 1.18 / 14.8.1 [temp.arg.explicit]
-% WG21 decided not to address this issue except to document that
-% argument-dependent lookup does not apply in this context.
-
-\pnum
-\begin{note}
-For simple function names, argument dependent lookup\iref{basic.lookup.argdep}
-applies even when the function name is not visible within the scope of the call.
-This is because the call still has the syntactic form of a function call\iref{basic.lookup.unqual}.
-But when a function template with explicit template arguments is used,
-the call does not have the correct syntactic form unless there is a function
-template with that name visible at the point of the call.
-If no such name is visible,
-the call is not syntactically well-formed and argument-dependent lookup
-does not apply.
-If some such name is visible,
-argument dependent lookup applies and additional function templates
-may be found in other namespaces.
-\begin{example}
-
-% Argument added to f per Usenet posting from martin von Loewis, 6 Sep 1998
-\begin{codeblock}
-namespace A {
-  struct B { };
-  template<int X> void f(B);
-}
-namespace C {
-  template<class T> void f(T t);
-}
-void g(A::B b) {
-  f<3>(b);          // ill-formed: not a function call
-  A::f<3>(b);       // well-formed
-  C::f<3>(b);       // ill-formed; argument dependent lookup applies only to unqualified names
-  using C::f;
-  f<3>(b);          // well-formed because \tcode{C::f} is visible; then \tcode{A::f} is found by argument dependent lookup
-}
-\end{codeblock}
-\end{example}
-\end{note}
 
 \pnum
 Template argument deduction can extend the sequence of template