docs(README): remove Citation section

Drop the ## Citation heading and its bibtex block; License is now the final section.

README.md

@@ -129,14 +129,3 @@ training data (~0.5B samples).
 
 Released under the **MIT License** (see `LICENSE`). The model was trained on data governed by the
 respective dataset licenses; downstream users are responsible for compliance with those terms.
-
-## Citation
-
-```bibtex
-@misc{motif_vision_encoder,
-  title  = {Motif Vision Encoder: a unified image/video self-supervised vision encoder},
-  author = {Motif Technologies},
-  year   = {2026},
-  howpublished = {\url{https://huggingface.co/Motif-Technologies/Motif-Vision-Encoder-7B}}
-}
-```