vulkan: remove unneeded variables

ggml-vulkan.cpp

@@ -1745,23 +1745,22 @@ void ggml_vk_instance_init() {
 
         // Default to using all dedicated GPUs
         for (size_t i = 0; i < devices.size(); i++) {
-            vk::PhysicalDeviceProperties new_props_1 = devices[i].getProperties();
-            vk::PhysicalDeviceProperties2 new_props_2;
+            vk::PhysicalDeviceProperties2 new_props;
             vk::PhysicalDeviceDriverProperties new_driver;
             vk::PhysicalDeviceIDProperties new_id;
-            new_props_2.pNext = &new_driver;
+            new_props.pNext = &new_driver;
             new_driver.pNext = &new_id;
-            devices[i].getProperties2(&new_props_2);
+            devices[i].getProperties2(&new_props);
 
-            if (new_props_1.deviceType == vk::PhysicalDeviceType::eDiscreteGpu) {
+            if (new_props.properties.deviceType == vk::PhysicalDeviceType::eDiscreteGpu) {
                 // Check if there are two physical devices corresponding to the same GPU
                 auto old_device = std::find_if(
                     vk_instance.device_indices.begin(),
                     vk_instance.device_indices.end(),
-                    [&devices, &new_id](const size_t k){ 
-                        vk::PhysicalDeviceProperties2 old_props_2;
+                    [&devices, &new_id](const size_t k){
+                        vk::PhysicalDeviceProperties2 old_props;
                         vk::PhysicalDeviceIDProperties old_id;
-                        devices[k].getProperties2(&old_props_2);
+                        devices[k].getProperties2(&old_props);
                         return std::equal(std::begin(old_id.deviceUUID), std::end(old_id.deviceUUID), std::begin(new_id.deviceUUID));
                     }
                 );
@@ -1772,18 +1771,18 @@ void ggml_vk_instance_init() {
                     // This can cause error when splitting layers aross the devices, need to keep only 1
                     VK_LOG_DEBUG("Device " << i << " and device " << *old_device << " have the same deviceUUID");
 
-                    vk::PhysicalDeviceProperties2 old_props_2;
+                    vk::PhysicalDeviceProperties2 old_props;
                     vk::PhysicalDeviceDriverProperties old_driver;
-                    old_props_2.pNext = &old_driver;
-                    devices[*old_device].getProperties2(&old_props_2);
+                    old_props.pNext = &old_driver;
+                    devices[*old_device].getProperties2(&old_props);
 
                     std::map<vk::DriverId, int> driver_priorities {};
                     int old_priority = std::numeric_limits<int>::max();
                     int new_priority = std::numeric_limits<int>::max();
 
                     // Check https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VkDriverId.html for the list of driver id
                     // Smaller number -> higher priority
-                    switch (old_props_2.properties.vendorID) {
+                    switch (old_props.properties.vendorID) {
                         case VK_VENDOR_ID_AMD:
                             driver_priorities[vk::DriverId::eMesaRadv] = 1;
                             driver_priorities[vk::DriverId::eAmdOpenSource] = 2;