examples: purged tag and dt shortcuts

Some examples define 'tag' and 'df' shortcuts to improve code
readability. This detail is misleading when looking at annotated
examples code that only shows code snippets.

Author: vpirogov

examples/bnorm_u8_via_binary_postops.cpp

@@ -1,5 +1,5 @@
 /*******************************************************************************
-* Copyright 2020-2022 Intel Corporation
+* Copyright 2020-2025 Intel Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -46,9 +46,6 @@
 
 using namespace dnnl;
 
-using tag = memory::format_tag;
-using dt = memory::data_type;
-
 void bnorm_u8_via_binary_postops(dnnl::engine::kind engine_kind) {
 
     // Create execution dnnl::engine.
@@ -102,12 +99,18 @@ void bnorm_u8_via_binary_postops(dnnl::engine::kind engine_kind) {
             oscale_data.begin(), oscale_data.end(), []() { return 0.5f; });
 
     // Create descriptors.
-    auto src_md = memory::desc(src_dims, dt::u8, tag::nhwc);
-    auto mean_md = memory::desc(params_dims, dt::f32, tag::nhwc);
-    auto variance_md = memory::desc(params_dims, dt::f32, tag::nhwc);
-    auto scale_md = memory::desc(params_dims, dt::f32, tag::nhwc);
-    auto shift_md = memory::desc(params_dims, dt::f32, tag::nhwc);
-    auto oscale_md = memory::desc(params_dims, dt::f32, tag::nhwc);
+    auto src_md = memory::desc(
+            src_dims, memory::data_type::u8, memory::format_tag::nhwc);
+    auto mean_md = memory::desc(
+            params_dims, memory::data_type::f32, memory::format_tag::nhwc);
+    auto variance_md = memory::desc(
+            params_dims, memory::data_type::f32, memory::format_tag::nhwc);
+    auto scale_md = memory::desc(
+            params_dims, memory::data_type::f32, memory::format_tag::nhwc);
+    auto shift_md = memory::desc(
+            params_dims, memory::data_type::f32, memory::format_tag::nhwc);
+    auto oscale_md = memory::desc(
+            params_dims, memory::data_type::f32, memory::format_tag::nhwc);
 
     // Create src memory objects.
     auto src_mem = memory(src_md, engine);