Cleanup: remove C++ RawArray

Unused, and conflict with rna `RawArray`.

Pull Request: https://projects.blender.org/blender/blender/pulls/111491

source/blender/blenlib/BLI_array.hh

@@ -433,11 +433,4 @@ class Array {
   }
 };
 
-/**
- * Same as a normal Array, but does not use Blender's guarded allocator. This is useful when
- * allocating memory with static storage duration.
- */
-template<typename T, int64_t InlineBufferCapacity = default_inline_buffer_capacity(sizeof(T))>
-using RawArray = Array<T, InlineBufferCapacity, RawAllocator>;
-
 }  // namespace blender