GPU: Remove erroneous buffer usage flag from defrag process

(cherry picked from commit aae2f74ae611652b2858393fdf6e4d6d6cb85384)

src/gpu/vulkan/SDL_gpu_vulkan.c

@@ -10787,8 +10787,6 @@ static bool VULKAN_INTERNAL_DefragmentMemory(
         VulkanMemoryUsedRegion *currentRegion = allocation->usedRegions[i];
 
         if (currentRegion->isBuffer && !currentRegion->vulkanBuffer->markedForDestroy) {
-            currentRegion->vulkanBuffer->usage |= VK_BUFFER_USAGE_TRANSFER_DST_BIT;
-
             VulkanBuffer *newBuffer = VULKAN_INTERNAL_CreateBuffer(
                 renderer,
                 currentRegion->vulkanBuffer->size,