build: remove unused timm dependency

Author: psychedelicious

pyproject.toml

@@ -50,7 +50,6 @@ dependencies = [
   # sentencepiece is required to load T5TokenizerFast (used by FLUX).
   "sentencepiece==0.2.0",
   "spandrel==0.3.4",
-  "timm",
   "torch~=2.6.0",         # torch and related dependencies are loosely pinned, will respect requirement of `diffusers[torch]`
   "torchmetrics",
   "torchsde",