Revert "add shader quad control sample demonstrating VK_KHR_shader_quad_control features."

This reverts commit d9524ac.

Author: gpx1000

antora/modules/ROOT/nav.adoc

@@ -86,7 +86,6 @@
 ** xref:samples/extensions/ray_tracing_reflection/README.adoc[Ray tracing reflection]
 ** xref:samples/extensions/ray_tracing_position_fetch/README.adoc[Ray tracing position fetch]
 ** xref:samples/extensions/shader_object/README.adoc[Shader Object]
-** xref:samples/extensions/shader_quad_control/README.adoc[Shader quad control]
 ** xref:samples/extensions/shader_debugprintf/README.adoc[Shader Debug Printf]
 ** xref:samples/extensions/sparse_image/README.adoc[Sparse Image]
 ** xref:samples/extensions/synchronization_2/README.adoc[Synchronization 2]

framework/vulkan_type_mapping.h

@@ -162,12 +162,6 @@ struct HPPType<VkPhysicalDeviceFragmentShaderBarycentricFeaturesKHR>
 	using Type = vk::PhysicalDeviceFragmentShaderBarycentricFeaturesKHR;
 };
 
-template <>
-struct HPPType<VkPhysicalDeviceShaderQuadControlFeaturesKHR>
-{
-	using Type = vk::PhysicalDeviceShaderQuadControlFeaturesKHR;
-};
-
 template <>
 struct HPPType<VkPhysicalDeviceFragmentShadingRateFeaturesKHR>
 {

samples/extensions/README.adoc

@@ -1,5 +1,5 @@
 ////
-- Copyright (c) 2021-2025, The Khronos Group
+- Copyright (c) 2021-2024, The Khronos Group
 -
 - SPDX-License-Identifier: Apache-2.0
 -
@@ -302,9 +302,3 @@ Demonstrate the use of the host image extension to directly copy from a host buf
 *Extensions:* https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VK_EXT_extended_dynamic_state3.html[`VK_EXT_line_rasterization`], https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VK_EXT_extended_dynamic_state3.html[`VK_EXT_extended_dynamic_state3`]
 
 Demonstrate how to use dynamic multisample rasterization (MSAA)
-
-=== xref:./{extension_samplespath}shader_quad_control/README.adoc[Shader quad control]
-
-*Extension*: https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VK_KHR_shader_quad_control.html[`VK_KHR_shader_quad_control`]
-
-Demonstrates quad‑scope operations in fragment shaders, such as broadcasting values within a 2x2 quad, and explains the `layout(full_quads)` and `layout(quad_derivatives)` execution modes.