diff --git a/src/Span.h b/src/Span.h
index 3d639f15d6..57015cdbe3 100644
--- a/src/Span.h
+++ b/src/Span.h
@@ -2,7 +2,6 @@
 
 #pragma once
 
-#include <array>
 #include <cstddef>
 #include <iterator>
 #include <type_traits>
@@ -128,9 +127,6 @@ private:
 template<class T>
 Span(T*, size_t) -> Span<T>;
 
-template<class Iter>
-Span(Iter, Iter) -> Span<typename std::iterator_traits<Iter>::value_type>;
-
 template<class T, size_t N>
 Span(T (&)[N]) -> Span<T>;