Removed unused code.

src/blackmisc/predicates.h

@@ -72,14 +72,6 @@ namespace BlackMisc
                 template <class T> bool operator()(const T &a, const T &b) const { return head.isStable(a, b) ? head(a, b) : tail(a, b); }
             };
 
-            //! \private
-            template <class T> struct Equals
-            {
-                const T m_value;
-                template <class U> Equals(U &&value, int dummy) : m_value(std::forward<U>(value)) { Q_UNUSED(dummy); }
-                template <class U> bool operator ()(const U &other) const { return other == m_value; }
-            };
-
             //! \private
             struct Matches
             {