vkDestroyFence

To destroy a fence, call:

void vkDestroyFence(
    VkDevice device,
    VkFence fence,
    const VkAllocationCallbacks* pAllocator);

device is the logical device that destroys the fence.
fence is the handle of the fence to destroy.
pAllocator controls host memory allocation as described in the Memory Allocation chapter.

All queue submission commands that refer to fence must have completed execution

If VkAllocationCallbacks were provided when fence was created, a compatible set of callbacks must be provided here

If no VkAllocationCallbacks were provided when fence was created, pAllocator must be NULL

device must be a valid VkDevice handle

If fence is not VK_NULL_HANDLE, fence must be a valid VkFence handle

If pAllocator is not NULL, pAllocator must be a valid pointer to a valid VkAllocationCallbacks structure

If fence is a valid handle, it must have been created, allocated, or retrieved from device