diff --git a/comfy/ldm/trellis2/sampling_preview.py b/comfy/ldm/trellis2/sampling_preview.py
deleted file mode 100644
index ddab00a5c..000000000
--- a/comfy/ldm/trellis2/sampling_preview.py
+++ /dev/null
@@ -1,41 +0,0 @@
-"""Side-channel for per-step sampling previews of the Trellis2/Pixal3D cascade.
-
-The sampler callback only receives the denoised latent `x0`, but a 3D preview of
-the texture stage also needs the sparse voxel coords (the latent alone is just an
-unordered [B, C, N, 1] feature stack). The diffusion model's forward writes the
-current stage context here each step; the latent previewer reads it. Single prompt
-samples one stage at a time, so a module-level holder is safe.
-
-Intentionally dependency-free to avoid import cycles with comfy.ldm.trellis2.model.
-"""
-
-_context = {}
-
-# Fitted texture latent -> base-color factors: (W [C, 3], b [3]) on CPU, or None.
-# Calibrated by VaeDecodeTextureTrellis from real decoded albedo and read by the
-# latent previewer for a faithful texture-stage color preview.
-_tex_rgb = None
-
-
-def set_context(mode=None, coords=None, coord_counts=None, model_frame=None):
-    _context["mode"] = mode
-    _context["coords"] = coords
-    _context["coord_counts"] = coord_counts
-    _context["model_frame"] = model_frame
-
-
-def get_context():
-    return _context
-
-
-def clear():
-    _context.clear()
-
-
-def set_tex_rgb(W, b):
-    global _tex_rgb
-    _tex_rgb = (W, b)
-
-
-def get_tex_rgb():
-    return _tex_rgb