void
 sh_css_params_shading_id_table_generate(
     struct ia_css_shading_table **target_table,
-#ifndef ISP2401
-    const struct ia_css_binary *binary)
-#else
     unsigned int table_width,
     unsigned int table_height)
-#endif
 {
        /* initialize table with ones, shift becomes zero */
-#ifndef ISP2401
-       unsigned int i, j, table_width, table_height;
-#else
        unsigned int i, j;
-#endif
        struct ia_css_shading_table *result;
 
        assert(target_table);
-#ifndef ISP2401
-       assert(binary);
-#endif
 
-#ifndef ISP2401
-       table_width  = binary->sctbl_width_per_color;
-       table_height = binary->sctbl_height;
-#endif
        result = ia_css_shading_table_alloc(table_width, table_height);
        if (!result) {
                *target_table = NULL;
        assert(binary);
 
        if (!in_table) {
-#ifndef ISP2401
-               sh_css_params_shading_id_table_generate(target_table, binary);
-#else
                sh_css_params_shading_id_table_generate(target_table,
-                                                       binary->sctbl_legacy_width_per_color, binary->sctbl_legacy_height);
-#endif
+                                                       binary->sctbl_legacy_width_per_color,
+                                                       binary->sctbl_legacy_height);
                return;
        }
 
        input_width  = min(input_width,  in_table->sensor_width);
        input_height = min(input_height, in_table->sensor_height);
 
-#ifndef ISP2401
-       table_width  = binary->sctbl_width_per_color;
-       table_height = binary->sctbl_height;
-#else
        /* This prepare_shading_table() function is called only in legacy API (not in new API).
           Then, the legacy shading table width and height should be used. */
        table_width  = binary->sctbl_legacy_width_per_color;
        table_height = binary->sctbl_legacy_height;
-#endif
 
        result = ia_css_shading_table_alloc(table_width, table_height);
        if (!result) {
 
 void
 sh_css_params_shading_id_table_generate(
     struct ia_css_shading_table **target_table,
-#ifndef ISP2401
-    const struct ia_css_binary *binary);
-#else
     unsigned int table_width,
     unsigned int table_height);
-#endif
 
 void
 prepare_shading_table(const struct ia_css_shading_table *in_table,
 
                                                ia_css_shading_table_free(params->sc_config);
                                                params->sc_config = NULL;
                                        }
-#ifndef ISP2401
-                                       sh_css_params_shading_id_table_generate(¶ms->sc_config, binary);
-#else
                                        sh_css_params_shading_id_table_generate(¶ms->sc_config,
-                                                                               binary->sctbl_width_per_color, binary->sctbl_height);
-#endif
+                                                                               binary->sctbl_width_per_color,
+                                                                               binary->sctbl_height);
                                        if (!params->sc_config) {
                                                IA_CSS_LEAVE_ERR_PRIVATE(IA_CSS_ERR_CANNOT_ALLOCATE_MEMORY);
                                                return IA_CSS_ERR_CANNOT_ALLOCATE_MEMORY;
                                        ia_css_shading_table_free(params->sc_config);
                                        params->sc_config = NULL;
                                }
-#ifndef ISP2401
-                               sh_css_params_shading_id_table_generate(¶ms->sc_config, binary);
-
-#else
                                sh_css_params_shading_id_table_generate(¶ms->sc_config,
-                                                                       binary->sctbl_width_per_color, binary->sctbl_height);
-#endif
+                                                                       binary->sctbl_width_per_color,
+                                                                       binary->sctbl_height);
                                table = params->sc_config;
                                /* The sc_config will be freed in the
                                 * ia_css_stream_isp_parameters_uninit function. */