remove ck_tile example from default cmake target like all/install/check

include/ck_tile/core/config.hpp

@@ -20,6 +20,8 @@
 #define CK_TILE_DEVICE_EXTERN
 #endif
 
+// minimal arch
+
 #ifndef CK_TILE_USE_CUSTOM_DATA_TYPE
 #define CK_TILE_USE_CUSTOM_DATA_TYPE 0 // custom data type will generate extra move/bfi code
 #endif

include/ck_tile/core/utility/ignore.hpp

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2024, Advanced Micro Devices, Inc. All rights reserved.
+
+#pragma once
+
+// https://en.cppreference.com/w/cpp/utility/tuple/ignore
+
+namespace ck_tile {
+
+namespace detail {
+struct ignore_t
+{
+    template <typename T>
+    constexpr void operator=(T&&) const noexcept
+    {
+    }
+};
+} // namespace detail
+
+inline constexpr detail::ignore_t ignore;
+
+} // namespace ck_tile