Revert "fixup add useConstFeatures parameter to oneapi interface"

This reverts commit 6ba776f.

cpp/oneapi/dal/algo/decision_forest/backend/cpu/train_kernel_cls.cpp

@@ -91,7 +91,6 @@ static result_t call_daal_kernel(const context_cpu& ctx,
         dal::detail::integral_cast<std::size_t>(desc.get_max_leaf_nodes());
     daal_parameter.maxBins = dal::detail::integral_cast<std::size_t>(desc.get_max_bins());
     daal_parameter.minBinSize = dal::detail::integral_cast<std::size_t>(desc.get_min_bin_size());
-    daal_parameter.useConstFeatures = desc.get_use_const_features();
 
     daal_parameter.resultsToCompute = static_cast<std::uint64_t>(desc.get_error_metric_mode());
 

cpp/oneapi/dal/algo/decision_forest/backend/cpu/train_kernel_reg.cpp

@@ -90,7 +90,6 @@ static result_t call_daal_kernel(const context_cpu& ctx,
         dal::detail::integral_cast<std::size_t>(desc.get_max_leaf_nodes());
     daal_parameter.maxBins = dal::detail::integral_cast<std::size_t>(desc.get_max_bins());
     daal_parameter.minBinSize = dal::detail::integral_cast<std::size_t>(desc.get_min_bin_size());
-    daal_parameter.useConstFeatures = desc.get_use_const_features();
 
     daal_parameter.resultsToCompute = static_cast<std::uint64_t>(desc.get_error_metric_mode());
 

cpp/oneapi/dal/algo/decision_forest/backend/gpu/train_kernel_hist_impl_dpc.cpp

@@ -173,7 +173,6 @@ void train_kernel_hist_impl<Float, Bin, Index, Task>::init_params(train_context_
 
     ctx.bootstrap_ = desc.get_bootstrap();
     ctx.max_tree_depth_ = desc.get_max_tree_depth();
-    ctx.use_const_features_ = desc.get_use_const_features();
 
     if constexpr (std::is_same_v<Task, task::classification>) {
         ctx.selected_ftr_count_ = desc.get_features_per_node() ? desc.get_features_per_node()

cpp/oneapi/dal/algo/decision_forest/backend/gpu/train_misc_structs.hpp

@@ -136,7 +136,6 @@ struct train_context {
     bool bootstrap_ = false;
     bool use_private_mem_buf_ = true; // valuable for classification only
         // for switching between private mem and other buffers(local, global) for storing class hist
-    bool use_const_features_ = false;
 
     Index total_bin_count_ = 0;
     Index max_bin_count_among_ftrs_ = 0;

cpp/oneapi/dal/algo/decision_forest/common.cpp

@@ -63,7 +63,6 @@ class descriptor_impl : public base {
 
     bool memory_saving_mode = false;
     bool bootstrap = true;
-    bool use_const_features = false;
 
     variable_importance_mode variable_importance_mode_value = variable_importance_mode::none;
     voting_mode voting_mode_value = voting_mode::weighted;
@@ -149,11 +148,6 @@ bool descriptor_base<Task>::get_bootstrap() const {
     return impl_->bootstrap;
 }
 
-template <typename Task>
-bool descriptor_base<Task>::get_use_const_features() const {
-    return impl_->use_const_features;
-}
-
 template <typename Task>
 variable_importance_mode descriptor_base<Task>::get_variable_importance_mode() const {
     return impl_->variable_importance_mode_value;
@@ -273,11 +267,6 @@ void descriptor_base<Task>::set_bootstrap_impl(bool value) {
     impl_->bootstrap = value;
 }
 
-template <typename Task>
-void descriptor_base<Task>::set_use_const_features_impl(bool value) {
-    impl_->use_const_features = value;
-}
-
 template <typename Task>
 void descriptor_base<Task>::set_variable_importance_mode_impl(variable_importance_mode value) {
     impl_->variable_importance_mode_value = value;

cpp/oneapi/dal/algo/decision_forest/common.hpp

@@ -212,7 +212,6 @@ class descriptor_base : public base {
     std::int64_t get_min_bin_size() const;
     bool get_memory_saving_mode() const;
     bool get_bootstrap() const;
-    bool get_use_const_features() const;
     error_metric_mode get_error_metric_mode() const;
     variable_importance_mode get_variable_importance_mode() const;
 
@@ -248,7 +247,6 @@ class descriptor_base : public base {
     void set_min_bin_size_impl(std::int64_t value);
     void set_memory_saving_mode_impl(bool value);
     void set_bootstrap_impl(bool value);
-    void set_use_const_features_impl(bool value);
     void set_error_metric_mode_impl(error_metric_mode value);
     void set_variable_importance_mode_impl(variable_importance_mode value);
     void set_class_count_impl(std::int64_t value);
@@ -505,18 +503,6 @@ class descriptor : public detail::descriptor_base<Task> {
         return *this;
     }
 
-    /// The use constant features mode, if true, constant-valued features are
-    /// considered for node splits
-    /// @remark default = false
-    bool get_use_const_features() const {
-        return base_t::get_use_const_features();
-    }
-
-    auto& set_use_const_features(bool value) {
-        base_t::set_use_const_features_impl(value);
-        return *this;
-    }
-
     /// The error metric mode
     /// @remark default = error_metric_mode::none
     error_metric_mode get_error_metric_mode() const {