FPGA: Remove detail::empty_properties_t and add std::log10 (oneapi-src#2356)

Remove redundant sycl::ext::oneapi::experimental::detail::empty_properties_t and replace it with sycl::ext::oneapi::experimental::empty_properties_t

Author: renlizha

DirectProgramming/C++SYCL_FPGA/ReferenceDesigns/anr/src/main.cpp

@@ -444,7 +444,7 @@ bool Validate(PixelT* val, PixelT* ref, int rows, int cols,
   mse /= count;
 
   // compute the PSNR
-  double psnr = (20 * log10(max_i)) - (10 * log10(mse));
+  double psnr = (20 * std::log10(max_i)) - (10 * std::log10(mse));
 
   // check PSNR and maximum pixel difference
   bool passed = true;

DirectProgramming/C++SYCL_FPGA/Tutorials/Features/experimental/annotated_class_clean_coding/src/annotated_class_util.hpp

@@ -128,8 +128,8 @@ struct remove_align_from {};
 
 template <>
 struct remove_align_from<
-    sycl::ext::oneapi::experimental::detail::empty_properties_t> {
-  using type = sycl::ext::oneapi::experimental::detail::empty_properties_t;
+    sycl::ext::oneapi::experimental::empty_properties_t> {
+  using type = sycl::ext::oneapi::experimental::empty_properties_t;
 };
 
 template <typename Prop, typename... Props>