[simd.traits] Remove stray closing parenthesis (#7563)

source/numerics.tex

@@ -16798,7 +16798,7 @@
 If \tcode{value} is present, the type \tcode{simd_alignment<T, U>} is a
 \tcode{BinaryTypeTrait} with a base characteristic of
 \tcode{integral_constant<size_t, N>} for some unspecified
-\tcode{N}\iref{simd.ctor,simd.loadstore}).
+\tcode{N}\iref{simd.ctor,simd.loadstore}.
 \begin{note}
 \tcode{value} identifies the alignment restrictions on pointers used for
 (converting) loads and stores for the given type \tcode{T} on arrays of type