Remove uses of ReleaseOwnership from vulkan backend (#5458)

* Remove uses of ReleaseOwnership from vulkan backend.

Flutter no longer needs to release ownership of objects to skia so this change removes the api calls.

* Remove Release call from vulkan_device.cc

* Update vulkan_application.h

* Update vulkan_application.cc

* Update vulkan_handle.h

vulkan/vulkan_application.cc

@@ -129,10 +129,6 @@ const VulkanHandle<VkInstance>& VulkanApplication::GetInstance() const {
   return instance_;
 }
 
-void VulkanApplication::ReleaseInstanceOwnership() {
-  instance_.ReleaseOwnership();
-}
-
 std::vector<VkPhysicalDevice> VulkanApplication::GetPhysicalDevices() const {
   if (!IsValid()) {
     return {};

vulkan/vulkan_application.h

@@ -38,8 +38,6 @@ class VulkanApplication {
 
   const VulkanHandle<VkInstance>& GetInstance() const;
 
-  void ReleaseInstanceOwnership();
-
   std::unique_ptr<VulkanDevice> AcquireFirstCompatibleLogicalDevice() const;
 
  private:

vulkan/vulkan_device.cc

@@ -153,10 +153,6 @@ const VulkanHandle<VkDevice>& VulkanDevice::GetHandle() const {
   return device_;
 }
 
-void VulkanDevice::ReleaseDeviceOwnership() {
-  device_.ReleaseOwnership();
-}
-
 const VulkanHandle<VkPhysicalDevice>& VulkanDevice::GetPhysicalDeviceHandle()
     const {
   return physical_device_;

vulkan/vulkan_device.h

@@ -35,8 +35,6 @@ class VulkanDevice {
 
   uint32_t GetGraphicsQueueIndex() const;
 
-  void ReleaseDeviceOwnership();
-
   FXL_WARN_UNUSED_RESULT
   bool GetSurfaceCapabilities(const VulkanSurface& surface,
                               VkSurfaceCapabilitiesKHR* capabilities) const;

vulkan/vulkan_handle.h

@@ -50,11 +50,6 @@ class VulkanHandle {
 
   operator Handle() const { return handle_; }
 
-  /// Relinquish responsibility of collecting the underlying handle when this
-  /// object is collected. It is the responsibility of the caller to ensure that
-  /// the lifetime of the handle extends past the lifetime of this object.
-  void ReleaseOwnership() { disposer_ = nullptr; }
-
   void Reset() { DisposeIfNecessary(); }
 
  private: