[linalg.conj.conjugated] Remove inappropriate "expression-equivalent"…

… wording (#7497)

This phrase appears to be copy-pasted from elsewhere, but is not meaningful here.

source/numerics.tex

@@ -12817,7 +12817,7 @@
 \tcode{Accessor} if \tcode{remove_cvref_t<ElementType>} is an arithmetic type; otherwise,
 \item
 \tcode{Accessor} if the expression \tcode{conj(E)} is not valid for any subexpression \tcode{E}
-whose type \tcode{T} is expression-equivalent to \tcode{remove_cvref_t<ElementType>}
+whose type is \tcode{remove_cvref_t<ElementType>}
 with overload resolution performed in a context that includes the declaration
 \tcode{template<class T> conj(const T\&) = delete;}; and otherwise,
 \item
@@ -12838,7 +12838,7 @@
 \tcode{a} if \tcode{remove_cvref_t<ElementType>} is an arithmetic type; otherwise,
 \item
 \tcode{a} if the expression \tcode{conj(E)} is not valid for any subexpression \tcode{E}
-whose type \tcode{T} is expression-equivalent to \tcode{remove_cvref_t<ElementType>}
+whose type is \tcode{remove_cvref_t<ElementType>}
 with overload resolution performed in a context that includes the declaration
 \tcode{template<class T> conj(const T\&) = delete;}; and otherwise,
 \item