diff --git a/backends/vulkan/runtime/api/Types.h b/backends/vulkan/runtime/api/Types.h
index 5e10dc50ea8..f58edff5b9e 100644
--- a/backends/vulkan/runtime/api/Types.h
+++ b/backends/vulkan/runtime/api/Types.h
@@ -201,15 +201,6 @@ static constexpr GPUMemoryLayout kHeightPacked =
 static constexpr GPUMemoryLayout kChannelsPacked =
     GPUMemoryLayout::TENSOR_CHANNELS_PACKED;
 
-/*
- * Given a GPUMemoryLayout, return the index of the dimension that is packed
- * along texels, assuming WHCN dimension order.
- */
-template <typename T>
-T to_packed_dim_whcn_idx(const GPUMemoryLayout layout) {
-  return static_cast<T>(layout);
-}
-
 /*
  * Given a GPUMemoryLayout, return an offset that can be used to determine the
  * index of the dimension that is packed along texels, assuming NCHW dimension