diff --git a/src/dawn/native/d3d12/BindGroupLayoutD3D12.cpp b/src/dawn/native/d3d12/BindGroupLayoutD3D12.cpp
index 80d4ea4e71..4e586a0947 100644
--- a/src/dawn/native/d3d12/BindGroupLayoutD3D12.cpp
+++ b/src/dawn/native/d3d12/BindGroupLayoutD3D12.cpp
@@ -78,21 +78,15 @@ namespace dawn::native::d3d12 {
 
             D3D12_DESCRIPTOR_RANGE_TYPE descriptorRangeType =
                 WGPUBindingInfoToDescriptorRangeType(bindingInfo);
-
-            // TODO(dawn:728) In the future, special handling will be needed for external textures
-            // here because they encompass multiple views.
             mShaderRegisters[bindingIndex] = uint32_t(bindingInfo.binding);
 
-            if (bindingIndex < GetDynamicBufferCount()) {
-                continue;
-            }
-
             // For dynamic resources, Dawn uses root descriptor in D3D12 backend. So there is no
             // need to allocate the descriptor from descriptor heap or create descriptor ranges.
+            if (bindingIndex < GetDynamicBufferCount()) {
+                continue;
+            }
             ASSERT(!bindingInfo.buffer.hasDynamicOffset);
 
-            // TODO(dawn:728) In the future, special handling will be needed for external textures
-            // here because they encompass multiple views.
             mDescriptorHeapOffsets[bindingIndex] =
                 descriptorRangeType == D3D12_DESCRIPTOR_RANGE_TYPE_SAMPLER
                     ? mSamplerDescriptorCount++
diff --git a/src/dawn/native/vulkan/BindGroupLayoutVk.cpp b/src/dawn/native/vulkan/BindGroupLayoutVk.cpp
index 20a8e1bcfd..8ed4340ae9 100644
--- a/src/dawn/native/vulkan/BindGroupLayoutVk.cpp
+++ b/src/dawn/native/vulkan/BindGroupLayoutVk.cpp
@@ -100,8 +100,6 @@ namespace dawn::native::vulkan {
 
             VkDescriptorSetLayoutBinding vkBinding;
             vkBinding.binding = static_cast<uint32_t>(bindingIndex);
-            // TODO(dawn:728) In the future, special handling will be needed for external textures
-            // here because they encompass multiple views.
             vkBinding.descriptorType = VulkanDescriptorType(bindingInfo);
             vkBinding.descriptorCount = 1;
             vkBinding.stageFlags = VulkanShaderStageFlags(bindingInfo.visibility);
@@ -126,8 +124,6 @@ namespace dawn::native::vulkan {
         std::map<VkDescriptorType, uint32_t> descriptorCountPerType;
 
         for (BindingIndex bindingIndex{0}; bindingIndex < GetBindingCount(); ++bindingIndex) {
-            // TODO(dawn:728) In the future, special handling will be needed for external textures
-            // here because they encompass multiple views.
             VkDescriptorType vulkanType = VulkanDescriptorType(GetBindingInfo(bindingIndex));
 
             // map::operator[] will return 0 if the key doesn't exist.