[temp.spec.partial.general] Reword note to avoid "may"

Author: tkoeppe

source/templates.tex

@@ -3287,8 +3287,7 @@
 One consequence is
 that a \grammarterm{using-declaration}
 which refers to a class template does not restrict the set of partial specializations
-which may be found through the
-\grammarterm{using-declaration}.
+that are found through the \grammarterm{using-declaration}.
 \end{note}
 \begin{example}
 \begin{codeblock}