Revert "Update initialization for GrVkAlloc for Skia change (flutter#…

…4738)" (flutter#4740)

This reverts commit e48e3e1.

content_handler/vulkan_surface.cc

@@ -264,17 +264,9 @@ bool VulkanSurface::SetupSkiaSurface(sk_sp<GrContext> context,
     return false;
   }
 
-  // TODO: Once flutter rolls Skia, just use the GrVkAlloc ctor directly in the
-  // GrVkImageInfo struct.
-  GrVkAlloc gr_vk_alloc;
-  gr_vk_alloc.fMemory = vk_memory_;
-  gr_vk_alloc.fOffset = 0;
-  gr_vk_alloc.fSize = memory_reqs.size;
-  gr_vk_alloc.fFlags = 0;
-
   const GrVkImageInfo image_info = {
       .fImage = vk_image_,
-      .fAlloc = gr_vk_alloc,
+      .fAlloc = {vk_memory_, 0, memory_reqs.size, 0},
       .fImageTiling = image_create_info.tiling,
       .fImageLayout = image_create_info.initialLayout,
       .fFormat = image_create_info.format,