Update toc.yml

Author: huypub

articles/partner-solutions/toc.yml

@@ -30,7 +30,5 @@ items:
     href: ./astronomer/index.yml
   - name: Informatica Intelligent Data Management Cloud (Preview) - Azure Native ISV Service
     href: ./informatica/index.yml
-  - name: Split Experimentation
-    href: ./split-experimentation/index.yml
   - name: Neon Serverless Postgres
     href: ./neon/index.yml