Remove citation placeholder

README.md

@@ -100,13 +100,6 @@ entry = metadata[0]
 
 ## Citation
 
-```bibtex
-@article{xue2026acwmphys,
-  title   = {ACWM-Phys: Investigating Generalized Physical Interaction
-             in Action-Conditioned Video World Models},
-  author  = {Xue, Haotian and Chen, Yipu and Ma, Liqian and Zhao, Zelin
-             and Moukheiber, Lama and Chen, Yongxin},
-  journal = {Advances in Neural Information Processing Systems},
-  year    = {2026}
-}
-```
+## Citation
+
+Coming soon.