diff --git a/format.h b/format.h
index dfe04ec9..1d1a6eb9 100644
--- a/format.h
+++ b/format.h
@@ -410,14 +410,6 @@ inline int isinfinity(double x) { return !_finite(x); }
 inline int isinfinity( long double x) { return !_finite(static_cast<double>(x)); }
 #endif
 
-/*
-template <typename T>
-struct IsLongDouble { enum {VALUE = 0}; };
-
-template <>
-struct IsLongDouble<long double> { enum {VALUE = 1}; };
-*/
-
 template <typename Char>
 class BasicCharTraits {
  public: