fix SameDimsAddFunctor (PaddlePaddle#78781)

Author: zrr1999

paddle/phi/kernels/cpu/elementwise.h

@@ -35,25 +35,7 @@ struct SameDimsAddFunctor {
 };
 
 template <typename DevCtx, typename T>
-struct SameDimsAddFunctor<
-    DevCtx,
-    T,
-    typename std::enable_if<std::is_floating_point<T>::value>::type> {
-  void operator()(const DevCtx& dev_ctx,
-                  const DenseTensor& x,
-                  const DenseTensor& y,
-                  DenseTensor* z) {
-    auto blas = funcs::GetBlas<DevCtx, T>(dev_ctx);
-    blas.VADD(
-        x.numel(), x.data<T>(), y.data<T>(), dev_ctx.template Alloc<T>(z));
-  }
-};
-
-template <typename DevCtx, typename T>
-struct SameDimsAddFunctor<
-    DevCtx,
-    T,
-    typename std::enable_if<!std::is_floating_point<T>::value>::type> {
+struct SameDimsAddFunctor<DevCtx, T> {
   void operator()(const DevCtx& dev_ctx,
                   const DenseTensor& x,
                   const DenseTensor& y,