Remove model placeholder

Leave the catalogue filename unresolved while distributing no model file.

model/README.md

@@ -5,5 +5,3 @@ To export another compatible YOLO26n model, place its checkpoint here as
 
 No PyTorch checkpoint is distributed in this repository.
 Converted model weights are also generated locally and are not distributed.
-The packaged `model.bin` is a text placeholder for catalogue integration, not
-a runnable model artifact.

runtime/arm_yolo26n_pi5_model/model/model.bin

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:6b6fb792a8f6a53735e43803de433aa8aca4518eb7a2c40b6b81d9ab9e73ebba
-size 190