Remove noexcept

Author: hewillk

source/numerics.tex

@@ -20065,7 +20065,7 @@
     template<size_t UBytes, class UAbi>
       constexpr explicit basic_mask(const basic_mask<UBytes, UAbi>&) noexcept;
     template<class G>
-      constexpr explicit basic_mask(G&& gen) noexcept;
+      constexpr explicit basic_mask(G&& gen);
     constexpr basic_mask(const bitset<size()>& b) noexcept;
     constexpr explicit basic_mask(@\libconcept{unsigned_integral}@ auto val) noexcept;