CU-869c3t2kk: Remove v1 models from README (#330)

Remove list of v1 models from README.
Only keeps a small note that there are several available.

Author: mart-r

medcat-v2/README.md

@@ -26,13 +26,7 @@ We have 2 public v2 models available:
 1) SnomedCT UK Clinical edition 39.0 (Oct 2024) and UK Drug Extension 39.0 (July 2024) based model enriched with UMLS 2024AA; trained only on MIMIC-IV
 2) SnomedCT UK Clinical edition 40.2 (June 2025) and UK Drug Extension 40.3 (July 2024) based model enriched with UMLS 2024AA; trained only on MIMIC-IV
 
-We also have a number of MedCAT v1 models available:
-1) UMLS Small (A modelpack containing a subset of UMLS (disorders, symptoms, medications...). Trained on MIMIC-III)
-2) SNOMED International (Full SNOMED modelpack trained on MIMIC-III)
-3) UMLS Dutch v1.10 (a modelpack provided by UMC Utrecht containing [UMLS entities with Dutch names](https://github.com/umcu/dutch-umls) trained on Dutch medical wikipedia articles and a negation detection model [repository](https://github.com/umcu/negation-detection/)/[paper](https://doi.org/10.48550/arxiv.2209.00470) trained on EMC Dutch Clinical Corpus).
-4) UMLS Full. >4MM concepts trained self-supervised on MIMIC-III. v2022AA of UMLS.
-5) The same 2024 based model as above in v1 format
-6) The same 2025 based model as above in v1 format
+There are also a number of MedCAT v1 models available that can automatically be converted if required.
 
 To download any of these models, please [follow this link](https://uts.nlm.nih.gov/uts/login?service=https://medcat.sites.er.kcl.ac.uk/auth-callback) (or [this link for API key based download](https://medcat.sites.er.kcl.ac.uk/auth-callback-api)) and sign into your NIH profile / UMLS license. You will then be redirected to the MedCAT model download form. Please complete this form and you will be provided a download link.