diff --git a/libs/vkd3d/device.c b/libs/vkd3d/device.c
index 86c0a237ec..ae141e99aa 100644
--- a/libs/vkd3d/device.c
+++ b/libs/vkd3d/device.c
@@ -137,7 +137,6 @@ static const struct vkd3d_optional_extension_info optional_device_extensions[] =
     VK_EXTENSION(NV_RAW_ACCESS_CHAINS, NV_raw_access_chains),
     /* VALVE extensions */
     VK_EXTENSION(VALVE_MUTABLE_DESCRIPTOR_TYPE, VALVE_mutable_descriptor_type),
-    VK_EXTENSION(VALVE_DESCRIPTOR_SET_HOST_MAPPING, VALVE_descriptor_set_host_mapping),
     /* MESA extensions */
     VK_EXTENSION(MESA_IMAGE_ALIGNMENT_CONTROL, MESA_image_alignment_control),
 };
@@ -1770,13 +1769,6 @@ static void vkd3d_physical_device_info_init(struct vkd3d_physical_device_info *i
         vk_prepend_struct(&info->features2, &info->shader_image_atomic_int64_features);
     }
 
-    if (vulkan_info->VALVE_descriptor_set_host_mapping)
-    {
-        info->descriptor_set_host_mapping_features.sType =
-                VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DESCRIPTOR_SET_HOST_MAPPING_FEATURES_VALVE;
-        vk_prepend_struct(&info->features2, &info->descriptor_set_host_mapping_features);
-    }
-
     if (vulkan_info->AMD_device_coherent_memory)
     {
         info->device_coherent_memory_features_amd.sType =
diff --git a/libs/vkd3d/state.c b/libs/vkd3d/state.c
index cc1bf793ab..f65133e36c 100644
--- a/libs/vkd3d/state.c
+++ b/libs/vkd3d/state.c
@@ -6237,8 +6237,6 @@ static HRESULT vkd3d_bindless_state_add_binding(struct vkd3d_bindless_state *bin
     VkDescriptorType mutable_descriptor_types[VKD3D_MAX_MUTABLE_DESCRIPTOR_TYPES];
     VkDescriptorSetLayoutBindingFlagsCreateInfo vk_binding_flags_info;
     const struct vkd3d_vk_device_procs *vk_procs = &device->vk_procs;
-    VkDescriptorSetLayoutHostMappingInfoVALVE mapping_info;
-    VkDescriptorSetBindingReferenceVALVE binding_reference;
     VkDescriptorSetLayoutCreateInfo vk_set_layout_info;
     VkMutableDescriptorTypeCreateInfoEXT mutable_info;
     VkDescriptorSetLayoutBinding *vk_binding;
@@ -6346,34 +6344,14 @@ static HRESULT vkd3d_bindless_state_add_binding(struct vkd3d_bindless_state *bin
         ERR("Failed to create descriptor set layout, vr %d.\n", vr);
 
     /* If we're able, we should implement descriptor copies with functions we roll ourselves. */
-    if (d3d12_device_uses_descriptor_buffers(device) ||
-            device->device_info.descriptor_set_host_mapping_features.descriptorSetHostMapping)
+    if (d3d12_device_uses_descriptor_buffers(device))
     {
-        if (d3d12_device_uses_descriptor_buffers(device))
-        {
-            INFO("Device supports VK_EXT_descriptor_buffer!\n");
-            VK_CALL(vkGetDescriptorSetLayoutBindingOffsetEXT(device->vk_device, set_info->vk_set_layout,
-                    set_info->binding_index, &desc_offset));
-            set_info->host_mapping_offset = desc_offset;
-            set_info->host_mapping_descriptor_size = vkd3d_get_descriptor_size_for_binding(device,
-                    &vk_set_layout_info, set_info->binding_index);
-        }
-        else
-        {
-            INFO("Device supports VK_VALVE_descriptor_set_host_mapping!\n");
-            binding_reference.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_BINDING_REFERENCE_VALVE;
-            binding_reference.pNext = NULL;
-            binding_reference.descriptorSetLayout = set_info->vk_set_layout;
-            binding_reference.binding = set_info->binding_index;
-            mapping_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_HOST_MAPPING_INFO_VALVE;
-            mapping_info.pNext = NULL;
-
-            VK_CALL(vkGetDescriptorSetLayoutHostMappingInfoVALVE(device->vk_device,
-                    &binding_reference, &mapping_info));
-
-            set_info->host_mapping_offset = mapping_info.descriptorOffset;
-            set_info->host_mapping_descriptor_size = mapping_info.descriptorSize;
-        }
+        INFO("Device supports VK_EXT_descriptor_buffer!\n");
+        VK_CALL(vkGetDescriptorSetLayoutBindingOffsetEXT(device->vk_device, set_info->vk_set_layout,
+                set_info->binding_index, &desc_offset));
+        set_info->host_mapping_offset = desc_offset;
+        set_info->host_mapping_descriptor_size = vkd3d_get_descriptor_size_for_binding(device,
+                &vk_set_layout_info, set_info->binding_index);
 
         set_info->host_copy_template =
                 vkd3d_bindless_find_copy_template(set_info->host_mapping_descriptor_size);
diff --git a/libs/vkd3d/vkd3d_private.h b/libs/vkd3d/vkd3d_private.h
index dbbe842260..49ee72854e 100644
--- a/libs/vkd3d/vkd3d_private.h
+++ b/libs/vkd3d/vkd3d_private.h
@@ -183,7 +183,6 @@ struct vkd3d_vulkan_info
     bool NV_raw_access_chains;
     /* VALVE extensions */
     bool VALVE_mutable_descriptor_type;
-    bool VALVE_descriptor_set_host_mapping;
     /* MESA extensions */
     bool MESA_image_alignment_control;
 
@@ -4459,7 +4458,6 @@ struct vkd3d_physical_device_info
     VkPhysicalDeviceComputeShaderDerivativesFeaturesKHR compute_shader_derivatives_features_khr;
     VkPhysicalDeviceShaderImageAtomicInt64FeaturesEXT shader_image_atomic_int64_features;
     VkPhysicalDeviceImageViewMinLodFeaturesEXT image_view_min_lod_features;
-    VkPhysicalDeviceDescriptorSetHostMappingFeaturesVALVE descriptor_set_host_mapping_features;
     VkPhysicalDeviceCoherentMemoryFeaturesAMD device_coherent_memory_features_amd;
     VkPhysicalDeviceRayTracingMaintenance1FeaturesKHR ray_tracing_maintenance1_features;
     VkPhysicalDeviceDeviceGeneratedCommandsFeaturesNV device_generated_commands_features_nv;