remove dead metafunctions

googlemock/include/gmock/internal/gmock-internal-utils.h

@@ -367,19 +367,6 @@ template <typename T> struct type_equals<T, T> : public true_type {};
 template <typename T> struct remove_reference { typedef T type; };  // NOLINT
 template <typename T> struct remove_reference<T&> { typedef T type; }; // NOLINT
 
-// DecayArray<T>::type turns an array type U[N] to const U* and preserves
-// other types.  Useful for saving a copy of a function argument.
-template <typename T> struct DecayArray { typedef T type; };  // NOLINT
-template <typename T, size_t N> struct DecayArray<T[N]> {
-  typedef const T* type;
-};
-// Sometimes people use arrays whose size is not available at the use site
-// (e.g. extern const char kNamePrefix[]).  This specialization covers that
-// case.
-template <typename T> struct DecayArray<T[]> {
-  typedef const T* type;
-};
-
 // Disable MSVC warnings for infinite recursion, since in this case the
 // the recursion is unreachable.
 #ifdef _MSC_VER

googletest/include/gtest/internal/gtest-type-util.h

@@ -105,18 +105,6 @@ std::string GetTypeName() {
 
 #if GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P
 
-// AssertyTypeEq<T1, T2>::type is defined if T1 and T2 are the same
-// type.  This can be used as a compile-time assertion to ensure that
-// two types are equal.
-
-template <typename T1, typename T2>
-struct AssertTypeEq;
-
-template <typename T>
-struct AssertTypeEq<T, T> {
-  typedef bool type;
-};
-
 // A unique type used as the default value for the arguments of class
 // template Types.  This allows us to simulate variadic templates
 // (e.g. Types<int>, Type<int, double>, and etc), which C++ doesn't

googletest/include/gtest/internal/gtest-type-util.h.pump

@@ -104,18 +104,6 @@ std::string GetTypeName() {
 
 #if GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P
 
-// AssertyTypeEq<T1, T2>::type is defined if T1 and T2 are the same
-// type.  This can be used as a compile-time assertion to ensure that
-// two types are equal.
-
-template <typename T1, typename T2>
-struct AssertTypeEq;
-
-template <typename T>
-struct AssertTypeEq<T, T> {
-  typedef bool type;
-};
-
 // A unique type used as the default value for the arguments of class
 // template Types.  This allows us to simulate variadic templates
 // (e.g. Types<int>, Type<int, double>, and etc), which C++ doesn't