all: remove dead code

src/gfx_apis/vulkan/device.rs

@@ -20,7 +20,7 @@ use {
     ash::{
         extensions::khr::{ExternalFenceFd, ExternalMemoryFd, ExternalSemaphoreFd, PushDescriptor},
         vk::{
-            DeviceCreateInfo, DeviceMemory, DeviceQueueCreateInfo, ExtExternalMemoryDmaBufFn,
+            DeviceCreateInfo, DeviceQueueCreateInfo, ExtExternalMemoryDmaBufFn,
             ExtImageDrmFormatModifierFn, ExtPhysicalDeviceDrmFn, ExtQueueFamilyForeignFn,
             ExternalSemaphoreFeatureFlags, ExternalSemaphoreHandleTypeFlags,
             ExternalSemaphoreProperties, KhrDriverPropertiesFn, KhrExternalFenceFdFn,
@@ -84,16 +84,6 @@ impl VulkanDevice {
     }
 }
 
-struct FreeMem<'a>(&'a Device, DeviceMemory);
-
-impl<'a> Drop for FreeMem<'a> {
-    fn drop(&mut self) {
-        unsafe {
-            self.0.free_memory(self.1, None);
-        }
-    }
-}
-
 impl VulkanInstance {
     fn get_device_extensions(&self, phy_dev: PhysicalDevice) -> Result<Extensions, VulkanError> {
         unsafe {

src/gfx_apis/vulkan/format.rs

@@ -27,11 +27,6 @@ pub struct VulkanFormat {
     pub features: FormatFeatureFlags,
 }
 
-#[derive(Debug)]
-pub struct VulkanFormatFeatures {
-    pub linear_sampling: bool,
-}
-
 #[derive(Debug)]
 pub struct VulkanModifier {
     pub modifier: Modifier,

src/gfx_apis/vulkan/image.rs

@@ -516,10 +516,6 @@ impl Debug for VulkanImage {
 }
 
 impl GfxFramebuffer for VulkanImage {
-    fn as_any(&self) -> &dyn Any {
-        self
-    }
-
     fn take_render_ops(&self) -> Vec<GfxApiOpt> {
         self.render_ops.take()
     }

src/gfx_apis/vulkan/renderer.rs

@@ -1023,9 +1023,6 @@ impl Debug for VulkanRenderer {
     }
 }
 
-#[derive(Debug)]
-pub struct TmpShmTexture(pub i32, pub i32);
-
 impl VulkanImage {
     fn assert_device(&self, device: &Device) {
         assert_eq!(